Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN: 9781337515610
Author: Crauder
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 2.4, Problem 2SBE
To determine
To find:
The appropriate equation for the given question
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The unpaid balance of an installment loan is equal to the present value of the remaining payments. The unpaid balance, P, is given by the formula below where PMT is the regular payment amount, r
is the annual interest rate, n is the number of payments per year, and t is the number of years remaining in the loan. Complete parts a. and b. below.
1+
P=PMAT (1-(1-4) -
n
r
A
n
a. Use the loan payment formula to derive the unpaid balance formula.
Explain how to derive the unpaid balance formula. Choose the correct answer below.
Multiply both sides of the loan payment formula by
1-
The unpaid balance after three years is $
(Round to the nearest dollar as needed.)
r
1+-
n
b. The price of a car is $24,000. You have saved 20% of the price as a down payment. After the down payment, the balance is financed with a 6-year loan with monthly payments at 7%. Determine
the unpaid balance after three years.
David posted $1500 in a savings account and an annual interest rate of 3% compound monthly. At the same time Jana deposited $1400 in a savings account at an annual rate of 4% compounded monthly. After how many months will the balance and Jana‘s savings account first be greater than the balance in David’s savings account?
A. 8
B. 12
C. 60
D. 84
Suppose that you borrow $10,000 for three years at 5% toward the purchase of a car. Use PMT=
The monthly payment is $
(Do not round until the final answer. Then round to the nearest cent as needed.)
PH
[-(-9]
The total interest for the loan is $
(Use the answer from part (a) to find this answer. Round to the nearest cent as needed.)
to find the monthly payments and the total interest for the loan
Chapter 2 Solutions
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Ch. 2.1 - If a coffee filter is dropped, its velocity after...Ch. 2.1 - Suppose one canoe rents for 40,and2 is taken off...Ch. 2.1 - A Saving Account You deposit money into a savings...Ch. 2.1 - Savings with regular Deposits Suppose you deposit...Ch. 2.1 - Paying Off a Credit Card Suppose you owe 15, 000...Ch. 2.1 - Buying Power The inflation rate tells us the...Ch. 2.1 - Economic Efficiency Marginal cost is the...Ch. 2.1 - Flesch Reading Ease The Flesch Reading Ease Test...Ch. 2.1 - Spache Readability Formula The Spache Readability...Ch. 2.1 - Weight Lifting Brzyckis formula is used by weight...
Ch. 2.1 - Harvard Step Test The Harvard Step Test was...Ch. 2.1 - Public High School Enrollment One model for the...Ch. 2.1 - Later Public High School Enrollment Here is a...Ch. 2.1 - Species-Area Relation The number of species of...Ch. 2.1 - Competition Two friends enjoy competing with each...Ch. 2.1 - Profit The profit P, in thousands of dollars that...Ch. 2.1 - Prob. 15ECh. 2.1 - Counting when Order Does Not Matter This is a...Ch. 2.1 - APR and EAR Recall that the APR the annual...Ch. 2.1 - An Amortization Table Suppose you borrow P dollars...Ch. 2.1 - Prob. 19ECh. 2.1 - Renting Motel Rooms You own a motel with 30 rooms,...Ch. 2.1 - Prob. 21ECh. 2.1 - A Population of Foxes A breeding group of foxes is...Ch. 2.1 - Falling with a parachute If an average-sized man...Ch. 2.1 - Rolling 4 Sixes If you roll N dice, then the...Ch. 2.1 - Prob. 25ECh. 2.1 - Profit with Varying Price The background for this...Ch. 2.1 - A Precocious Child and Her Blocks A child has 64...Ch. 2.1 - Renting Paddleboats An enterprise rents out...Ch. 2.1 - Growth in Length of Haddock D.S. Raitt found that...Ch. 2.1 - Discharge from a Fire Hose The discharge from a...Ch. 2.1 - Prob. 31ECh. 2.1 - Terminal Velocity Revisited In one of the early...Ch. 2.1 - Research Project Find a function given by formula...Ch. 2.1 - Making Tables and Comparing Functions In Exercises...Ch. 2.1 - Prob. 2SBECh. 2.1 - Prob. 3SBECh. 2.1 - Prob. 4SBECh. 2.1 - Prob. 5SBECh. 2.1 - Prob. 6SBECh. 2.1 - Prob. 7SBECh. 2.1 - Prob. 8SBECh. 2.1 - Prob. 9SBECh. 2.1 - Prob. 10SBECh. 2.1 - Prob. 11SBECh. 2.1 - Finding Limiting Values In Exercises S-11 through...Ch. 2.1 - Prob. 13SBECh. 2.1 - Prob. 14SBECh. 2.1 - Prob. 15SBECh. 2.1 - Prob. 16SBECh. 2.1 - Prob. 17SBECh. 2.1 - Prob. 18SBECh. 2.1 - Prob. 19SBECh. 2.1 - Prob. 20SBECh. 2.1 - Prob. 21SBECh. 2.1 - Prob. 22SBECh. 2.1 - Finding Limiting Values In Exercises S-11 through...Ch. 2.1 - Prob. 24SBECh. 2.1 - Finding Maxima and Minima In Exercises S-25...Ch. 2.1 - Prob. 26SBECh. 2.1 - Prob. 27SBECh. 2.1 - Prob. 28SBECh. 2.1 - Prob. 29SBECh. 2.1 - Prob. 30SBECh. 2.1 - Prob. 31SBECh. 2.1 - Prob. 32SBECh. 2.2 - TEST TOUR UNDERSTANDING FOR EXAMPLE 2.3 Suppose a...Ch. 2.2 - TEST TOUR UNDERSTANDING FOR EXAMPLE 2.4 Changes in...Ch. 2.2 - Continuous Compounding A certain investment is...Ch. 2.2 - Present Value: The present value P is the...Ch. 2.2 - Equity: When you use a mortgage to purchase a...Ch. 2.2 - Buying a Car: If you buy a 25,000 car at an APR of...Ch. 2.2 - Adult Weight from Puppy Weight There is a formula...Ch. 2.2 - Mosteller Formula for Body Surface Area: Body...Ch. 2.2 - Weekly Cost: The weekly cost of running a small...Ch. 2.2 - Average Speed: A commuter regularly drives 70...Ch. 2.2 - Resale Value: The resale value V, in dollars, of a...Ch. 2.2 - Profit The yearly profit P for a widget producer...Ch. 2.2 - Baking a Potato: A potato is placed in a preheated...Ch. 2.2 - Functional Response: The amount C of food consumed...Ch. 2.2 - Population Growth: The growth G of a population...Ch. 2.2 - Ohms Law: says that when electric current is...Ch. 2.2 - Prob. 15ECh. 2.2 - Monthly Payment for a Home: If you borrow 120,000...Ch. 2.2 - Prob. 17ECh. 2.2 - Alexanders Formula One interesting problem in the...Ch. 2.2 - Prob. 18.2ECh. 2.2 - Prob. 19ECh. 2.2 - Planet Growth The amount of growth of plants in an...Ch. 2.2 - Prob. 21ECh. 2.2 - Viewing Earth: Astronauts looking at Earth from a...Ch. 2.2 - Magazine Circulation: The circulation C of a...Ch. 2.2 - Prob. 24ECh. 2.2 - Buffalo: Waterton Lakes National Park of Canada,...Ch. 2.2 - Prob. 26ECh. 2.2 - Prob. 27ECh. 2.2 - Prob. 1SBECh. 2.2 - Prob. 2SBECh. 2.2 - Prob. 3SBECh. 2.2 - Prob. 4SBECh. 2.2 - Prob. 5SBECh. 2.2 - Prob. 6SBECh. 2.2 - Prob. 7SBECh. 2.2 - Prob. 8SBECh. 2.2 - Prob. 9SBECh. 2.2 - Prob. 10SBECh. 2.2 - Prob. 11SBECh. 2.2 - Finding Windows and Making Graphs: In Exercises...Ch. 2.2 - Prob. 13SBECh. 2.2 - Prob. 14SBECh. 2.2 - Prob. 15SBECh. 2.2 - Prob. 16SBECh. 2.2 - Prob. 17SBECh. 2.2 - Finding Windows and Making Graphs: In Exercises...Ch. 2.2 - Prob. 19SBECh. 2.2 - Prob. 20SBECh. 2.2 - Prob. 21SBECh. 2.2 - Prob. 22SBECh. 2.2 - Prob. 23SBECh. 2.2 - Prob. 24SBECh. 2.2 - Prob. 25SBECh. 2.2 - Prob. 26SBECh. 2.2 - Prob. 27SBECh. 2.2 - Prob. 28SBECh. 2.2 - Prob. 29SBECh. 2.2 - Finding Windows and Making Graphs: In Exercises...Ch. 2.3 - In the situation of the example, how long could...Ch. 2.3 - If you travel 300 miles on the first day and then...Ch. 2.3 - Prob. 3TUCh. 2.3 - Prob. 1ECh. 2.3 - Trans Fat You are ordering fast food for your...Ch. 2.3 - Prob. 3ECh. 2.3 - Prob. 4ECh. 2.3 - Break-even Point A manufacturer of T-shirts has...Ch. 2.3 - Juice Sales The number J, in thousands, of cans of...Ch. 2.3 - Resale Value The resale value V, in thousands of...Ch. 2.3 - Aerobic Power Aerobic power can be thought of as...Ch. 2.3 - Gas Mileage The distance d, in miles, that you can...Ch. 2.3 - Isocost Equation We are to buy quantities of two...Ch. 2.3 - Supply and Demand The quantity S of barley, in...Ch. 2.3 - Stock Turnover at Retail In retail sales, an...Ch. 2.3 - Prob. 13ECh. 2.3 - Sales Strategy A small business is considering...Ch. 2.3 - Prob. 15ECh. 2.3 - Prob. 16ECh. 2.3 - Temperature Conversions In everyday experience,...Ch. 2.3 - The Ideal Gas Law A mole of a chemical is a fixed...Ch. 2.3 - Running Ants A scientist observed that the speed S...Ch. 2.3 - Tax Owed According to the Oklahoma Income Tax...Ch. 2.3 - Prob. 21ECh. 2.3 - Growth in Weight and Height Between the ages of 7...Ch. 2.3 - Prob. 23ECh. 2.3 - Prob. 24ECh. 2.3 - Prob. 25ECh. 2.3 - Prob. 26ECh. 2.3 - Prob. 27ECh. 2.3 - Prob. 1SBECh. 2.3 - Prob. 2SBECh. 2.3 - Prob. 3SBECh. 2.3 - Prob. 4SBECh. 2.3 - Prob. 5SBECh. 2.3 - Prob. 6SBECh. 2.3 - Prob. 7SBECh. 2.3 - Solving Linear Equations In Exercises S-7 through...Ch. 2.3 - Prob. 9SBECh. 2.3 - Solving Linear Equations In Exercises S-7 through...Ch. 2.3 - Prob. 11SBECh. 2.3 - Solving Linear Equations In Exercises S-7 through...Ch. 2.3 - Prob. 13SBECh. 2.3 - Prob. 14SBECh. 2.3 - Prob. 15SBECh. 2.3 - Prob. 16SBECh. 2.3 - Prob. 17SBECh. 2.3 - Prob. 18SBECh. 2.3 - Prob. 19SBECh. 2.3 - Prob. 20SBECh. 2.3 - Prob. 21SBECh. 2.3 - Prob. 22SBECh. 2.3 - Prob. 23SBECh. 2.3 - Prob. 24SBECh. 2.3 - Prob. 25SBECh. 2.3 - Prob. 26SBECh. 2.3 - Prob. 27SBECh. 2.3 - Reversing Roles of Variables In Exercises S-17...Ch. 2.3 - Prob. 29SBECh. 2.3 - Prob. 30SBECh. 2.4 - The number N of deer expected to be present on the...Ch. 2.4 - Prob. 2TUCh. 2.4 - Doubling Time An investment grows according to the...Ch. 2.4 - You Win the Lottery Congratulations You have just...Ch. 2.4 - Prob. 3ECh. 2.4 - Your Childs Education You want to begin making...Ch. 2.4 - Engine Displacement The displacement for an...Ch. 2.4 - Altmans z-score Altmans z-score is a financial...Ch. 2.4 - Admiralty Coefficient The Admiralty Coefficent A...Ch. 2.4 - Properller Size An ideal diameter d, in feet, of a...Ch. 2.4 - A Population of Foxes A breeding group of foxes is...Ch. 2.4 - Profit The monthly profit P for a widget producer...Ch. 2.4 - Prob. 11ECh. 2.4 - The Skydiver Again When a skydiver jumps from an...Ch. 2.4 - Falling with a Parachute If an average-sized man...Ch. 2.4 - A Cup of Cofee The temperature C of a fresh cup of...Ch. 2.4 - Reaction Rates In a chemical reaction, the...Ch. 2.4 - Population Growth The growth G of a population of...Ch. 2.4 - Van der Waals Equation In Exercise 18 at the end...Ch. 2.4 - Radioactive Decay The half-life of a radioactive...Ch. 2.4 - Prob. 19ECh. 2.4 - Prob. 20ECh. 2.4 - Grazing Kangaroos The amount of vegetation eaten...Ch. 2.4 - Grazing Rabbits and Sheep This is a continuation...Ch. 2.4 - Prob. 23ECh. 2.4 - Hosting a Convention You are hosting a convention...Ch. 2.4 - Breaking Even The background for this exercise can...Ch. 2.4 - Prob. 26ECh. 2.4 - Water Flea F. E Smith has reported on population...Ch. 2.4 - Hollings Functional Response Curve The total...Ch. 2.4 - Radius of a Shock Wave An explosion produces a...Ch. 2.4 - Prob. 30ECh. 2.4 - Home Equity When you purchase a home by securing a...Ch. 2.4 - Prob. 1SBECh. 2.4 - Prob. 2SBECh. 2.4 - Setting Up Equations Each of Exercise S-1 through...Ch. 2.4 - Prob. 4SBECh. 2.4 - Prob. 5SBECh. 2.4 - The Crossing-Graphs Method In Exercise S-5 through...Ch. 2.4 - The Crossing-Graphs Method In Exercise S-5 through...Ch. 2.4 - Prob. 8SBECh. 2.4 - Prob. 9SBECh. 2.4 - The Crossing-Graphs Method In Exercise S-5 through...Ch. 2.4 - The Crossing-Graphs Method In Exercise S-5 through...Ch. 2.4 - Prob. 12SBECh. 2.4 - Prob. 13SBECh. 2.4 - The Crossing-Graphs Method In Exercise S-5 through...Ch. 2.4 - Prob. 15SBECh. 2.4 - Prob. 16SBECh. 2.4 - Prob. 17SBECh. 2.4 - Prob. 18SBECh. 2.4 - The Single-Graph Method In Exercises S-17 through...Ch. 2.4 - Prob. 20SBECh. 2.4 - Prob. 21SBECh. 2.4 - Prob. 22SBECh. 2.4 - Prob. 23SBECh. 2.4 - Prob. 24SBECh. 2.4 - Prob. 25SBECh. 2.4 - Prob. 26SBECh. 2.4 - The Single-Graph Method In Exercises S-17 through...Ch. 2.4 - Prob. 28SBECh. 2.5 - During what time period would the broker advise...Ch. 2.5 - Prob. 2TUCh. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Prob. 2ECh. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Prob. 5.2ECh. 2.5 - Prob. 6ECh. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Prob. 9ECh. 2.5 - Prob. 10ECh. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Prob. 12ECh. 2.5 - Prob. 13ECh. 2.5 - Prob. 14ECh. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Reminder Round all answers to two decimal places...Ch. 2.5 - Prob. 17ECh. 2.5 - Prob. 18ECh. 2.5 - Prob. 19ECh. 2.5 - Prob. 20ECh. 2.5 - Prob. 21ECh. 2.5 - Prob. 1SBECh. 2.5 - Prob. 2SBECh. 2.5 - Finding Inequalities Each of Exercises S-1 through...Ch. 2.5 - Prob. 4SBECh. 2.5 - Solving Inequalities Solve the inequalities in...Ch. 2.5 - Prob. 6SBECh. 2.5 - Prob. 7SBECh. 2.5 - Solving Inequalities Solve the inequalities in...Ch. 2.5 - Prob. 9SBECh. 2.5 - Solving Inequalities Solve the inequalities in...Ch. 2.5 - Solving Inequalities Solve the inequalities in...Ch. 2.5 - Solving Inequalities Solve the inequalities in...Ch. 2.5 - Prob. 13SBECh. 2.5 - Prob. 14SBECh. 2.5 - Solving Inequalities Solve the inequalities in...Ch. 2.5 - Prob. 16SBECh. 2.5 - Prob. 17SBECh. 2.5 - Prob. 18SBECh. 2.5 - Prob. 19SBECh. 2.6 - TEST YOUR UNTERSTANDING FOR EXAMPLE 2.12 Replace...Ch. 2.6 - World Crude Oil Production In 1956, M.King Hubbert...Ch. 2.6 - Life Expectancy Versus Health Care Spending One...Ch. 2.6 - Builders Old Measurement The Builders Old...Ch. 2.6 - Drug Concentration When a drug is administered...Ch. 2.6 - The Cannon at a Different Angle Suppose a cannon...Ch. 2.6 - Profit The weekly profit P for a widget producer...Ch. 2.6 - Marine Fishery One class of models for population...Ch. 2.6 - Enclosing a field You have 16 miles of fence that...Ch. 2.6 - Forming a pen We want to form a rectangle pen of...Ch. 2.6 - Sales Growth In this exercise, we develop a model...Ch. 2.6 - Maximum Sales Growth This is a continuation of...Ch. 2.6 - An Aluminum Can The cost of making a can is...Ch. 2.6 - Prob. 13ECh. 2.6 - Cost for a Can This is a continuation of Exercises...Ch. 2.6 - Prob. 15ECh. 2.6 - Laying Phone Cable City A lies on the north bank...Ch. 2.6 - Prob. 17ECh. 2.6 - Prob. 18ECh. 2.6 - Prob. 19ECh. 2.6 - Spawner-Recruit Model In fish management it is...Ch. 2.6 - Rate of Growth The rate of growth G in the weight...Ch. 2.6 - Health Plan The manager of an employee health plan...Ch. 2.6 - Size of High Schools The farm population has...Ch. 2.6 - Prob. 24ECh. 2.6 - Water Flea F. E. Smith has studied population...Ch. 2.6 - Prob. 26ECh. 2.6 - Prob. 27ECh. 2.6 - Maximum and Minimum Values In Exercise S-1 through...Ch. 2.6 - Maximum and Minimum Values In Exercise S-1 through...Ch. 2.6 - Prob. 3SBECh. 2.6 - Prob. 4SBECh. 2.6 - Prob. 5SBECh. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Prob. 8SBECh. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Prob. 10SBECh. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Prob. 12SBECh. 2.6 - Prob. 13SBECh. 2.6 - Prob. 14SBECh. 2.6 - Prob. 15SBECh. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Prob. 17SBECh. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Prob. 20SBECh. 2.6 - Finding Maxima and Minima In Exercises S-5 through...Ch. 2.6 - Prob. 22SBECh. 2.6 - Prob. 23SBECh. 2.6 - Prob. 24SBECh. 2.6 - Prob. 25SBECh. 2.6 - Prob. 26SBECh. 2.6 - Endpoint Maximum Find the maximum value of...Ch. 2.6 - Maximum and Minimum Find the maximum and minimum...Ch. 2.CR - Finding a Minimum Suppose the function...Ch. 2.CR - Population of Foxes A breeding group of foxes is...Ch. 2.CR - Prob. 3CRCh. 2.CR - Water Jug If a completely full 5-gallon water jug...Ch. 2.CR - Maxima and Minima Find the maximum and minimum...Ch. 2.CR - George Reserve Population The number of deer on...Ch. 2.CR - Prob. 7CRCh. 2.CR - Forming a Pen We want to form a free-standing...Ch. 2.CR - The Crossing-Graphs Method Solve using the...Ch. 2.CR - Prob. 10CRCh. 2.CR - Prob. 11CRCh. 2.CR - Prob. 12CRCh. 2.CR - Linear Equations Solve for W:L=98.42+1.08W4.14A.Ch. 2.CR - Growth of North Sea Sole The length of North Sea...Ch. 2.CR - Minimum Find the minimum value of x2+20/(x+1) on...Ch. 2.CR - Prob. 16CRCh. 2.CR - Prob. 17CRCh. 2.CR - Temperature Conversions The three principal...Ch. 2.CR - Lidocaine Lidocaine is a drug used to treat...Ch. 2.CR - The Single-Graph Method Use the single-graph...Ch. 2.CR - Prob. 21CRCh. 2.FR1 - Prob. 1ECh. 2.FR1 - Prob. 2ECh. 2.FR1 - Prob. 3ECh. 2.FR1 - Prob. 4ECh. 2.FR1 - Prob. 5ECh. 2.FR1 - Prob. 6ECh. 2.FR1 - Prob. 7ECh. 2.FR1 - Prob. 8ECh. 2.FR1 - Prob. 9ECh. 2.FR1 - Prob. 10ECh. 2.FR1 - Prob. 11ECh. 2.FR1 - Prob. 12ECh. 2.FR1 - Prob. 13ECh. 2.FR1 - Prob. 14ECh. 2.FR1 - Prob. 15ECh. 2.FR2 - Prob. 1ECh. 2.FR2 - Prob. 2ECh. 2.FR2 - Prob. 3ECh. 2.FR2 - Prob. 4ECh. 2.FR2 - Prob. 5ECh. 2.FR2 - Prob. 6ECh. 2.FR2 - Prob. 7ECh. 2.FR2 - Prob. 8ECh. 2.FR2 - Prob. 9ECh. 2.FR2 - Prob. 10ECh. 2.FR2 - Prob. 11ECh. 2.FR2 - Prob. 12ECh. 2.FR2 - Prob. 13ECh. 2.FR2 - Prob. 14ECh. 2.FR2 - Prob. 15ECh. 2.FR3 - Locating the Vertex of a Parabola In Exercises 1...Ch. 2.FR3 - Prob. 2ECh. 2.FR3 - Prob. 3ECh. 2.FR3 - Prob. 4ECh. 2.FR3 - Prob. 5ECh. 2.FR3 - Prob. 6ECh. 2.FR3 - Applications Exercises 5 through 13 illustrate...Ch. 2.FR3 - Prob. 8ECh. 2.FR3 - Prob. 9ECh. 2.FR3 - Prob. 10ECh. 2.FR3 - Prob. 11ECh. 2.FR3 - Prob. 12ECh. 2.FR3 - Prob. 13E
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.Similar questions
- Finance A family has a monthly mortgage payment of $760, which is 16 of their monthly income. What is the family’s monthly income?arrow_forwardA total of $50,000 is invested in two funds that pay 4 and 5.5 simple interest. The yearly interest is $2390. How much is invested at each rate?arrow_forwardSelf Check A man invests 12,000, part at 7 and the rest at 9. If the annual income from these investments is 965, how much was invested at each rate?arrow_forward
- Investments Jack invest $1000 at a certain annual interest rate, and he invests another $2000 at an annual rate that is one half percent higher. If he receives a total of $190 interest in 1 year, at what rate is the $1000 invested?arrow_forwardForensics At 8:30 A.M., a coroner went to the home of a person who had died during the night. In order to estimate the time of death, the coroner took the person’s temperature twice. At 9:00 A.M. the temperature was 85.7F, and at 11:00 A.M. the temperature was 82.8F. From these two temperatures, the coroner was able to determine that the time elapsed since death and the body temperature were related by the formula t=10lnT7098.670 where t is the time in hours elapsed since the person died and T is the temperature (in degrees Fahrenheit) of the person’s body. (This formula comes from a general cooling principle called Newton’s Law of Cooling. It uses the assumptions that the person had a normal body temperature of 98.6F at death and that the room temperature was a constant 70F.) Use the formula to estimate the time of death of the person.arrow_forwardSuppose gas costs 3.50 a gallon. We make a model for the cost C of buying x gallons of gas by writing the formula C=.arrow_forward
- 1) Suppose you take out a $100,000 loan from a bank, with an interest rate of 13.5% per year compounded monthly, and you wish to repay the loan in equal monthly payments of $7,000. Your task is to find out how many equal monthly payments you need to make to completely repay the loan if the payments are made at the end of each period. Solve by hand and using the excel NPER function. Solution: 16 monthsarrow_forwardSub parts 4-6arrow_forwardTwo babies are born and their parents are planning to save for their education. The Smith Family invests $3000 into an investment account that pays 8%/a compounded annually and the Wu family invests $2500 into an account that pays 9%/a compounded semi – annually. Equations modelling the amount of each family's investment, A , where t is the amount of years is shown below. The Smiths As = 3000(1 + 0.08)t Aw = 2500 (1+ 002)** The Wus Describe the significance of each numerical value in the equations above. Algebraically determine the number of years, to the nearest tenth, that it will take for the value of the investments of the two families to be the same. Ainarrow_forward
- Assume that you nave a balance of $2000 on your MasterCard and that you make no more charges. Assume that MasterCard charges 12% APR and that each month you make only the minimum payment of 5% of the balance. Find a formula for the balance B after t monthly payments. (Enter numerical values to four decimal places.) Hint 1: You must write the formula as an equation, which means it should include an equal sign with variables and/or constants on both sides. The initial balance is entered in exact form. The product within the square brackets should be entered as a single number that is rounded to four decimal places. Hint 2: You are not required to use the symbol palette that appears on screen. You may use your keyboard to type +, =, and * (which is the keyboard version of the multiplication symbol). Hint 3: Type the ^ before the exponent or use the symbol palette to enter the exponent.arrow_forwardHelparrow_forwardThe unpaid balance of an installment loan is equal to the present value of the remaining payments. The unpaid balance, P, is given by the formula below where PMT is the regular payment amount, r is the annual interest rate, n is the number of payments per year, and t is the number of years remaining in the loan. Complete parts a. and b. below. -nt] + n [1₁-(₁₁ 9] A P= PMT- a. Use the loan payment formula to derive the unpaid balance formula. Explain how to derive the unpaid balance formula. Choose the correct answer below. Multiply both sides of the loan payment formula by The unpaid balance after three years is $ (Round to the nearest dollar as needed.) b. The price of a car is $21,000. You have saved 20% of the price as a down payment. After the down payment, the balance is financed with a 5-year loan with monthly payments at 9%. Determine the unpaid balance after three years. example Get more help . OCT 12 1- 1+ tv Clear all - nt P Check answer Aarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
What is a Linear Equation in One Variable?; Author: Don't Memorise;https://www.youtube.com/watch?v=lDOYdBgtnjY;License: Standard YouTube License, CC-BY
Linear Equation | Solving Linear Equations | What is Linear Equation in one variable ?; Author: Najam Academy;https://www.youtube.com/watch?v=tHm3X_Ta_iE;License: Standard YouTube License, CC-BY