PATHWAYS TO MATH LITERACY (LL)-W/ACCESS
PATHWAYS TO MATH LITERACY (LL)-W/ACCESS
2nd Edition
ISBN: 9781260256536
Author: sobecki
Publisher: MCG
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Concept explainers

Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
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Textbook Question
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Chapter 3.10, Problem 18C

Interestingly, this technique can also be used to solve problems that could be solved by writing a single equation, like the next one.

While traveling on business, Eldrick bought a $50 prepaid international cell phone to call his girlfriend Lindsey. Calls cost $0.07 per minute. How many minutes has he used if the display shows $32.15 remaining?

To answer this question we could think about two different equations. One states that the value of the card V is $32.15.

Next we can write another equation that states that the value V started at $50 and decreased by $0.07 for each minute used x.

Now solve the system using the substitution method. Did you get the same solution? Use this result to solve the original problem.

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Chapter 3 Solutions

PATHWAYS TO MATH LITERACY (LL)-W/ACCESS

Ch. 3.1 - Use dimensional analysis to perform each...Ch. 3.1 - Rewrite each fraction with the given denominator....Ch. 3.1 - Draw a scatter plot of the data provided, which...Ch. 3.1 - The graph shows the number of hours of daylight...Ch. 3.1 - Think of an example of a rate of change different...Ch. 3.1 - If you make $100 a day for doing a certain job,...Ch. 3.1 - Are 100day and 500day equivalent rates? What does...Ch. 3.1 - Write a fraction equivalent to 60mi4hr that has 2...Ch. 3.1 - Write a fraction equivalent to 60mi4hr that has 1...Ch. 3.1 - Write a fraction equivalent to 3204days that has...
Ch. 3.1 - If one bicyclist is pedaling at a rate of 40 miles...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - Most experienced runners get to a point where they...Ch. 3.1 - According to taxifarefinder.com, a cab ride from...Ch. 3.1 - What do you notice about the pattern that the...Ch. 3.1 - The point where any graph crosses the y axis is...Ch. 3.1 - How much more will you pay for a 3-mile ride than...Ch. 3.1 - How much more will you pay for a 5-mile ride than...Ch. 3.1 - If you were to connect the points...Ch. 3.1 - How much more distance was added to the ride going...Ch. 3.1 - How much cost was added to the ride going from...Ch. 3.1 - Find the slope of the line using your answers to...Ch. 3.1 - The thing that makes a line a line is the fact...Ch. 3.1 - Estimate the distance of a $16 cab ride. You can...Ch. 3.1 - Everyone knows that after you buy a car, in most...Ch. 3.1 - Everyone knows that after you buy a car, in most...Ch. 3.1 - Everyone knows that after you buy a car, in most...Ch. 3.1 - Everyone knows that after you buy a car, in most...Ch. 3.1 - Everyone knows that after you buy a car, in most...Ch. 3.1 - Everyone knows that after you buy a car, in most...Ch. 3.1 - Try this problem to see if you understand the...Ch. 3.1 - Try this problem to see if you understand the...Ch. 3.1 - Try this problem to see if you understand the...Ch. 3.1 - Try this problem to see if you understand the...Ch. 3.1 - Try this problem to see if you understand the...Ch. 3.1 - Type a short answer to each question. In this...Ch. 3.1 - Type a short answer to each question. Explain in...Ch. 3.1 - Type a short answer to each question. What are the...Ch. 3.1 - When advertising special financing deals, car...Ch. 3.1 - When advertising special financing deals, car...Ch. 3.1 - When advertising special financing deals, car...Ch. 3.1 - Use your answer to Question 3 and dimensional...Ch. 3.1 - Use your answer to Question 3 and dimensional...Ch. 3.1 - If you agree on a price of $23,900 (including...Ch. 3.1 - A manufacturing company buys a new stamping...Ch. 3.1 - A manufacturing company buys a new stamping...Ch. 3.1 - A manufacturing company buys a new stamping...Ch. 3.1 - A manufacturing company buys a new stamping...Ch. 3.1 - A manufacturing company buys a new stamping...Ch. 3.2 - Perform each addition or subtraction. a. 3x+8x12...Ch. 3.2 - The graph on the next page shows the value of an...Ch. 3.2 - What is the y intercept of the graph? What does it...Ch. 3.2 - Evaluate each expression for the given value of...Ch. 3.2 - In your own words, what is algebra?Ch. 3.2 - When a company is making moneywhich is the goalthe...Ch. 3.2 - The spreadsheet describes the costs associated...Ch. 3.2 - The spreadsheet describes the costs associated...Ch. 3.2 - The spreadsheet describes the costs associated...Ch. 3.2 - The spreadsheet describes the costs associated...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - When writing an expression that represents some...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Next, well study the profit made by the business,...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Use the spreadsheet at the beginning of the lesson...Ch. 3.2 - Try these problems to see if you understand the...Ch. 3.2 - Try these problems to see if you understand the...Ch. 3.2 - Try these problems to see if you understand the...Ch. 3.2 - Try these problems to see if you understand the...Ch. 3.2 - Try these problems to see if you understand the...Ch. 3.2 - Type a short answer to each question. Describe how...Ch. 3.2 - Type a short answer to each question. Describe...Ch. 3.2 - Type a short answer to each question. If a...Ch. 3.2 - Type a short answer to each question. Name one...Ch. 3.2 - Type a short answer to each question. What...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.2 - Unfortunately for the snow cone business we...Ch. 3.3 - Prob. 1PSQCh. 3.3 - Evaluate each expression for the given value of...Ch. 3.3 - Marlene rented a new apartment for $1,400 a month,...Ch. 3.3 - A stock that has been tanking lately was at $42...Ch. 3.3 - The statement below contains a variable quantity....Ch. 3.3 - The equation 5=5 is obviously true, while the...Ch. 3.3 - We know the equation 1ft=12in. is a true...Ch. 3.3 - The equation 1mi=5,280ft is true, while the...Ch. 3.3 - Fill in the blank to complete a description of our...Ch. 3.3 - Is the solution you found in the colored box the...Ch. 3.3 - We know that the equation 1 min=60 sec is true. So...Ch. 3.3 - Use the result of Question 7 to fill in the blank,...Ch. 3.3 - Use Tool #1 to multiply both sides of the original...Ch. 3.3 - Use cross-multiplying to solve the proportion...Ch. 3.3 - We know that 1 min=60 sec. Is it okay to add the...Ch. 3.3 - Is it okay to add 3 seconds to both sides of the...Ch. 3.3 - Use the result of Question 12 to fill in the...Ch. 3.3 - Given the fact that 36in.=3ft, subtract 5 in. from...Ch. 3.3 - Use the result of Question 14 to fill in the...Ch. 3.3 - Given the fact that x represents the number of...Ch. 3.3 - Given that P represents the profit, what should we...Ch. 3.3 - Now you should be able to solve an equation to...Ch. 3.3 - Check your answer by plugging it back into the...Ch. 3.3 - Use the equation to find the profit if 700 snow...Ch. 3.3 - Use the equation to find the number of snow cones...Ch. 3.3 - Look very carefully at the steps you did to solve...Ch. 3.3 - Start with P=245+0.63x. Perform the exact same...Ch. 3.3 - Suppose we were interested in using this...Ch. 3.3 - Use a calculator or spreadsheet to complete the...Ch. 3.3 - Earlier in the course, we worked with two...Ch. 3.3 - Earlier in the course, we worked with two...Ch. 3.3 - Earlier in the course, we worked with two...Ch. 3.3 - Try this problem to see if you understand the...Ch. 3.3 - Try this problem to see if you understand the...Ch. 3.3 - Try this problem to see if you understand the...Ch. 3.3 - Try this problem to see if you understand the...Ch. 3.3 - Try this problem to see if you understand the...Ch. 3.3 - Type a short answer to each question. Explain in...Ch. 3.3 - Type a short answer to each question. Describe the...Ch. 3.3 - Type a short answer to each question. What is a...Ch. 3.3 - In Lesson 3-1, we studied a cab ride by looking at...Ch. 3.3 - In Lesson 3-1, we studied a cab ride by looking at...Ch. 3.3 - In Lesson 3-1, we studied a cab ride by looking at...Ch. 3.3 - In Lesson 3-1, we studied a cab ride by looking at...Ch. 3.3 - In Lesson 3-1, we studied a cab ride by looking at...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.3 - In Lesson 3-1, we also studied how the value of a...Ch. 3.4 - Write an inequality to represent each set of...Ch. 3.4 - Write a verbal description of the interval...Ch. 3.4 - Prob. 3PSQCh. 3.4 - Find all solutions to each equation. a. x+2=5 b....Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Do these tools work for solving inequalities too?...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - Now lets get back to our good friends in the snow...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - The temperature inside a room housing computer...Ch. 3.4 - Try this problem to see if you understand the...Ch. 3.4 - Try this problem to see if you understand the...Ch. 3.4 - Try this problem to see if you understand the...Ch. 3.4 - Try this problem to see if you understand the...Ch. 3.4 - Type a short answer to each question. Explain why...Ch. 3.4 - Type a short answer to each question. How does our...Ch. 3.4 - Type a short answer to each question. .What do the...Ch. 3.4 - What does the inequality 5.1+2.6m20 represent in...Ch. 3.4 - Solve the inequality and graph the solution on a...Ch. 3.4 - Write a sentence describing what your solution...Ch. 3.4 - Explain why an inequality is a more natural choice...Ch. 3.4 - Suppose that youre running some errands for your...Ch. 3.4 - Solve the inequality you wrote in Question 5.Ch. 3.4 - Describe what information is provided by your...Ch. 3.4 - Suppose that you have a maximum of $50 to spend on...Ch. 3.4 - Solve the inequality you chose and write an...Ch. 3.4 - In Lesson 3-1, we also studied the depreciation in...Ch. 3.5 - An account starts out with an initial deposit of...Ch. 3.5 - The length of a rectangular climbing wall is 8...Ch. 3.5 - Lindor truffles (my personal weakness) are on sale...Ch. 3.5 - Solve each equation. a. 3x+5=20 b. y53=8 c....Ch. 3.5 - Solve each equation for the requested variable. a....Ch. 3.5 - Use dimensional analysis to solve each problem. a....Ch. 3.5 - Whats the first thing you think of when you hear...Ch. 3.5 - Now lets practice using Polyas procedure. Heres...Ch. 3.5 - Now lets practice using Polyas procedure. Heres...Ch. 3.5 - Now lets practice using Polyas procedure. Heres...Ch. 3.5 - Now lets practice using Polyas procedure. Heres...Ch. 3.5 - Now lets practice using Polyas procedure. Heres...Ch. 3.5 - Now lets practice using Polyas procedure. Heres...Ch. 3.5 - Now lets practice using Polyas procedure. Heres...Ch. 3.5 - Generalize this problem to develop a framework...Ch. 3.5 - Suppose that you have four people in your family,...Ch. 3.5 - Now lets think about generalizing our approach....Ch. 3.5 - Use the numbers from the problem we already solved...Ch. 3.5 - Hey, great news! Your family now has five members...Ch. 3.5 - The riding mower in the classic movie Forrest Gump...Ch. 3.5 - Can you generalize what you did to solve Problem...Ch. 3.5 - Last problem: A crop-dusting service is hired to...Ch. 3.5 - Try this problem to see if you understand the...Ch. 3.5 - Try this problem to see if you understand the...Ch. 3.5 - Try this problem to see if you understand the...Ch. 3.5 - Type a short answer to each question. What are...Ch. 3.5 - Prob. 3RCh. 3.5 - Prob. 4RCh. 3.5 - For the first question, well provide some...Ch. 3.5 - For the first question, well provide some...Ch. 3.5 - For the first question, well provide some...Ch. 3.5 - For the first question, well provide some...Ch. 3.5 - For the first question, well provide some...Ch. 3.5 - For the first question, well provide some...Ch. 3.5 - For the first question, well provide some...Ch. 3.5 - A landscaping company sells two types of grass...Ch. 3.5 - A landscaping company sells two types of grass...Ch. 3.5 - A landscaping company sells two types of grass...Ch. 3.5 - A landscaping company sells two types of grass...Ch. 3.5 - A landscaping company sells two types of grass...Ch. 3.6 - Write a proportion that describes this situation:...Ch. 3.6 - Solve each proportion. a. y84=57 b. 49=x+220Ch. 3.6 - Solve each equation. a. 34=k5 b....Ch. 3.6 - Solve for n: B=nw.Ch. 3.6 - On February 21, 2017, one ounce of gold was worth...Ch. 3.6 - Use one of the conversion factors you wrote to...Ch. 3.6 - Have you ever heard the phrase is directly...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - An exchange rate is a number that describes how...Ch. 3.6 - Earlier in this unit, we put a lot of energy into...Ch. 3.6 - Now lets talk about a painful experience that we...Ch. 3.6 - Now lets talk about a painful experience that we...Ch. 3.6 - If 5 gallons of gas costs $11.10: How much would...Ch. 3.6 - If 5 gallons of gas costs $11.10: How much if you...Ch. 3.6 - Now the more interesting question: How much would...Ch. 3.6 - Now the more interesting question: How much would...Ch. 3.6 - Now the more interesting question: How much would...Ch. 3.6 - Now the more interesting question: How much would...Ch. 3.6 - Now the more interesting question: How much would...Ch. 3.6 - Now the more interesting question: How much would...Ch. 3.6 - Which method of finding the cost of 15.2 gallons...Ch. 3.6 - What would it cost you to put 11.55 gallons in...Ch. 3.6 - If you spent $40 on gasoline at this pump, how...Ch. 3.6 - If you get paid hourly at your job, the total...Ch. 3.6 - a. Solve the general direct variation equation...Ch. 3.6 - My Mini Me is 5.82 inches tall, that handsome...Ch. 3.6 - The actual Mini Me from the Austin Powers movies...Ch. 3.6 - The sales commission earned by a saleswoman varies...Ch. 3.6 - Use the sales commission rate to write an equation...Ch. 3.6 - Prob. 21GCh. 3.6 - Earlier, we observed that as the number of rubles...Ch. 3.6 - In Questions 2325, decide if the graph illustrates...Ch. 3.6 - In Questions 2325, decide if the graph illustrates...Ch. 3.6 - In Questions 2325, decide if the graph illustrates...Ch. 3.6 - Try this problem to see if you understand the...Ch. 3.6 - Try this problem to see if you understand the...Ch. 3.6 - Try this problem to see if you understand the...Ch. 3.6 - Type short answer to each question. How would you...Ch. 3.6 - Type short answer to each question. What are some...Ch. 3.6 - Type short answer to each question. Name one thing...Ch. 3.6 - Use the Internet to find and write the current...Ch. 3.6 - Complete the table using the current exchange...Ch. 3.6 - Write an equation that will convert U.S. dollars...Ch. 3.6 - Which is the independent variable in your...Ch. 3.6 - The average cost in China of an imported...Ch. 3.6 - If thats accurate, one dollar should be worth less...Ch. 3.6 - How much would that affect the price of a...Ch. 3.6 - Forensic scientists often examine scaled-up crime...Ch. 3.6 - Heres a look at a map of the east side of Dubuque,...Ch. 3.6 - Heres a look at a map of the east side of Dubuque,...Ch. 3.6 - Heres a look at a map of the east side of Dubuque,...Ch. 3.6 - Heres a look at a map of the east side of Dubuque,...Ch. 3.6 - Heres a look at a map of the east side of Dubuque,...Ch. 3.7 - Translate each statement into symbols. a....Ch. 3.7 - The table describes the amount of money earned by...Ch. 3.7 - Find the slope of your graph, and describe what it...Ch. 3.7 - What is the y intercept of your graph? What does...Ch. 3.7 - Prob. 1CCh. 3.7 - Write an equation that represents the total cost C...Ch. 3.7 - Complete the table, then use it to estimate the...Ch. 3.7 - Use the information from the table to draw a graph...Ch. 3.7 - Since we want to spend AT MOST $175, this is a...Ch. 3.7 - Whats the slope of the line you drew in Question...Ch. 3.7 - What does it represent? Whats the y intercept of...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - Nice job so far, but did we forget to mention the...Ch. 3.7 - A small business had just 12 employees when they...Ch. 3.7 - What are the slope and y intercept of this line?...Ch. 3.7 - Use this information to draw a graph of your...Ch. 3.7 - After being arrested for driving under the...Ch. 3.7 - Explain exactly what your answer to Question 1...Ch. 3.7 - Describe some of the effects the arresting...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - John Q. Bonehead decides it would be a good idea...Ch. 3.7 - Try these problems to see if you understand the...Ch. 3.7 - Prob. 2DYGICh. 3.7 - Prob. 3DYGICh. 3.7 - Prob. 4DYGICh. 3.7 - Prob. 5DYGICh. 3.7 - Prob. 6DYGICh. 3.7 - Type a short answer to each question. Describe the...Ch. 3.7 - Type a short answer to each question. Explain how...Ch. 3.7 - Prob. 3RCh. 3.7 - Type a short answer to each question. Explain how...Ch. 3.7 - Type a short answer to each question. Name one...Ch. 3.7 - Type a short answer to each question. What...Ch. 3.7 - Bubba weighed 170 pounds when he started college,...Ch. 3.7 - Restate your answer to Question 1 in the form of a...Ch. 3.7 - If Bubba continues this modest-sounding weight...Ch. 3.7 - How long will it take our buddy Bubba to pass the...Ch. 3.7 - Draw the graph of your equation, including (as...Ch. 3.7 - Find the slope of the line and explain what it...Ch. 3.7 - Find the y intercept and explain what it means.Ch. 3.7 - Find the slope of a line based on the data in the...Ch. 3.7 - Write a linear equation that describes Bubbas...Ch. 3.7 - Restate your answer to Question 9 in the form of a...Ch. 3.7 - Use your equation to find Bubbas weight if he...Ch. 3.7 - Use your equation to find how many extra calories...Ch. 3.7 - According to the Mayo Clinic website, a man of...Ch. 3.7 - Based on this entire activity, what would have...Ch. 3.7 - A movie download service has a $14 monthly fee for...Ch. 3.7 - A movie download service has a $14 monthly fee for...Ch. 3.7 - A movie download service has a $14 monthly fee for...Ch. 3.8 - After spending only 10 minutes on his first...Ch. 3.8 - Draw the graph of the equation y=20x+45.Ch. 3.8 - Find all solutions to each equation or inequality....Ch. 3.8 - If you make the reasonable assumption that the...Ch. 3.8 - Which quantity should be the independent variable,...Ch. 3.8 - Using your answer to Question 2, write two points...Ch. 3.8 - What does your slope tell us about the cost?Ch. 3.8 - Now the big question: Can we find the equation of...Ch. 3.8 - Now the big question: Can we find the equation of...Ch. 3.8 - Now the big question: Can we find the equation of...Ch. 3.8 - Now the big question: Can we find the equation of...Ch. 3.8 - Now were going to use our new favorite word:...Ch. 3.8 - Now were going to use our new favorite word:...Ch. 3.8 - Now were going to use our new favorite word:...Ch. 3.8 - Now were going to use our new favorite word:...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A small business has been selling 200 digital...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - A custom shirt shop charges a setup fee plus an...Ch. 3.8 - Try these problems to see if you understand the...Ch. 3.8 - Prob. 2DYGICh. 3.8 - Try these problems to see if you understand the...Ch. 3.8 - When finding the equation of a line, do you prefer...Ch. 3.8 - Prob. 2RCh. 3.8 - Prob. 3RCh. 3.8 - Name one thing you learned or discovered in this...Ch. 3.8 - As you might expect, this table shows that the...Ch. 3.8 - Lets continue on the assumption that tread...Ch. 3.8 - Why was it smart to write miles in thousands,...Ch. 3.8 - Use either one of the ordered pairs in the table...Ch. 3.8 - Write the slope-intercept form of the equation...Ch. 3.8 - Graph the equation and the two points from the...Ch. 3.8 - Use your equation to predict the tread thickness...Ch. 3.8 - According to the U.S. Department of...Ch. 3.8 - That particular model of tire has tread thickness...Ch. 3.9 - Draw a scatter plot for the data here, which...Ch. 3.9 - Find the equation of the line through each pair of...Ch. 3.9 - Without using technology, what are some ways you...Ch. 3.9 - Decide if you think the two quantities are likely...Ch. 3.9 - Is there a relationship between the total fat in a...Ch. 3.9 - The points on your scatter plot dont form a...Ch. 3.9 - Identify two points on the line of best fit that...Ch. 3.9 - Use the procedure in the Using Technology box to...Ch. 3.9 - Use your answer to Question 5 to predict the...Ch. 3.9 - A classic roast beef sandwich from Arbys has 360...Ch. 3.9 - One of these scatter plots has a correlation...Ch. 3.9 - One of the scatter plots has each students...Ch. 3.9 - What is the value of the correlation coefficient r...Ch. 3.9 - Based on all of the work done in this activity,...Ch. 3.9 - Look back at the original table of fat and...Ch. 3.9 - Find the residual for the White Castle burger.Ch. 3.9 - What factors would be likely to go into how many...Ch. 3.9 - Decide which hand everyone will use. Right? Left?...Ch. 3.9 - How should you measure hand size? And what units...Ch. 3.9 - Now its time to begin the activity. For each...Ch. 3.9 - Draw a scatter plot of the data on the grid...Ch. 3.9 - Use a calculator or spreadsheet to draw a scatter...Ch. 3.9 - Add the line to your hand graph.Ch. 3.9 - Find the correlation coefficient for the data. How...Ch. 3.9 - Use the line of best fit to predict the number of...Ch. 3.9 - Use your equation and either the table feature on...Ch. 3.9 - Compute the residual for everyone in the class,...Ch. 3.9 - Find the sum of all residuals. What can you...Ch. 3.9 - Write any conclusions you can draw about the...Ch. 3.9 - Try this problem to see if you understand the...Ch. 3.9 - Try this problem to see if you understand the...Ch. 3.9 - Try this problem to see if you understand the...Ch. 3.9 - Type a short answer to each question. What is a...Ch. 3.9 - Type a short answer to each question. Does the...Ch. 3.9 - Type a short answer to each question. Does a line...Ch. 3.9 - Type a short answer to each question. Name one...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.9 - This table shows the average annual cost for...Ch. 3.10 - Which has the cheaper unit price: a bag of 40...Ch. 3.10 - Which has the cheaper unit price: 4 pounds of...Ch. 3.10 - Substitute 18+3y for x into the expression 15x.Ch. 3.10 - Substitute 3x1 for y into the expression 2y25.Ch. 3.10 - Ify=14x, rewrite the equation 5x10y=85 with x as...Ch. 3.10 - A semi-private golf course has an initiation fee...Ch. 3.10 - Players can choose to walk the course, in which...Ch. 3.10 - In this problem, there are two variable quantities...Ch. 3.10 - Use your answer from Question 2 to write an...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - If we repeat what you did in Question 3 for the...Ch. 3.10 - Interestingly, this technique can also be used to...Ch. 3.10 - Interestingly, this technique can also be used to...Ch. 3.10 - Interestingly, this technique can also be used to...Ch. 3.10 - Interestingly, this technique can also be used to...Ch. 3.10 - Interestingly, this technique can also be used to...Ch. 3.10 - Interestingly, this technique can also be used to...Ch. 3.10 - Interestingly, this technique can also be used to...Ch. 3.10 - The members of an intramural softball team decide...Ch. 3.10 - The Shirt Shack operates on a daily fixed cost...Ch. 3.10 - Try this problem to see if you understand the...Ch. 3.10 - Try this problem to see if you understand the...Ch. 3.10 - Try this problem to see if you understand the...Ch. 3.10 - Type a short answer to each question. What is a...Ch. 3.10 - Type a short answer to each question. How can you...Ch. 3.10 - Type a short answer to each question. If its...Ch. 3.10 - Parents with young babies buy a lot of diapers (to...Ch. 3.10 - Parents with young babies buy a lot of diapers (to...Ch. 3.10 - Parents with young babies buy a lot of diapers (to...Ch. 3.10 - Parents with young babies buy a lot of diapers (to...Ch. 3.10 - Parents with young babies buy a lot of diapers (to...Ch. 3.10 - The equations you wrote in Questions 3 and 4 form...Ch. 3.10 - After her first two exams in psychology, a student...Ch. 3.10 - A hospital needs 80 liters of a 12% solution of...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Carefully read through the list of terminology...Ch. 3 - Use a graphing calculator to graph the equation...Ch. 3 - Use a graphing calculator to create a scatter plot...Ch. 3 - Use a spreadsheet to create a scatter plot and...Ch. 3 - The following two graphs show the distance...Ch. 3 - In this graph the input x is the number of units...Ch. 3 - In this graph the input x is the number of units...Ch. 3 - In this graph the input x is the number of units...Ch. 3 - In this graph the input x is the number of units...Ch. 3 - In this graph the input x is the number of units...Ch. 3 - In this graph the input x is the number of units...Ch. 3 - In this graph the input x is the number of units...Ch. 3 - The following equation has been solved. Provide an...Ch. 3 - Solve each equation in Questions 1013. 3x=12Ch. 3 - Solve each equation in Questions 1013. t+4=28Ch. 3 - Solve each equation in Questions 1013. b250=200Ch. 3 - Solve each equation in Questions 1013. y2=11Ch. 3 - In Questions 14 and 15, solve each equation for a....Ch. 3 - In Questions 14 and 15, solve each equation for a....Ch. 3 - The following inequality has been solved. Provide...Ch. 3 - Is 15 a solution to the inequality in Question 16?...Ch. 3 - Graph the solution to Question 16 on a number...Ch. 3 - Solve each inequality in Questions 1922. a420Ch. 3 - Solve each inequality in Questions 1922. z410Ch. 3 - Solve each inequality in Questions 1922. 3b60Ch. 3 - Solve each inequality in Questions 1922. x+511Ch. 3 - For Questions 2325, refer to the following: A...Ch. 3 - For Questions 2325, refer to the following: A...Ch. 3 - For Questions 2325, refer to the following: A...Ch. 3 - In a 200-gallon tank, a farmer has 120 gallons of...Ch. 3 - Turns out the farmer in Question 26 wanted to get...Ch. 3 - For Questions 2832, assume $20 U.S. can be...Ch. 3 - For Questions 2832, assume $20 U.S. can be...Ch. 3 - For Questions 2832, assume $20 U.S. can be...Ch. 3 - For Questions 2832, assume $20 U.S. can be...Ch. 3 - For Questions 2832, assume $20 U.S. can be...Ch. 3 - An appliance repair shop charges $50 for a house...Ch. 3 - Graph the equation you wrote in Question 33.Ch. 3 - An airplane starts at an altitude of 36,000 ft and...Ch. 3 - Determine an equation of the line in...Ch. 3 - Determine an equation of the line in point-slope...Ch. 3 - Consider the following as you work Questions 3843....Ch. 3 - Consider the following as you work Questions 3843....Ch. 3 - Consider the following as you work Questions 3843....Ch. 3 - Consider the following as you work Questions 3843....Ch. 3 - Consider the following as you work Questions 3843....Ch. 3 - Consider the following as you work Questions 3843....Ch. 3 - A jet has a fuel tank containing 40,000 gallons of...Ch. 3 - Use part of the equation you wrote in Question 44...Ch. 3 - Paul works for an organization that prints a color...Ch. 3 - Paul works for an organization that prints a color...
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