![Precalculus - A Custom Text for UNLV](https://www.bartleby.com/isbn_cover_images/9781133150572/9781133150572_largeCoverImage.gif)
Concept explainers
Cell Phone Costs A cell phone company charges a monthly fee of $10 for the first 1000 text messages and 10 cents for each additional text message. Miriam’s bill for text messages for the month of June is $38.50. How many text messages did she send that month?
![Check Mark](/static/check-mark.png)
To find: The total number of text messages Miriam send in a month.
Answer to Problem 20E
Miriam sends total 1285 text messages in a month.
Explanation of Solution
Given:
The cost for first 1000 messages is $10 and cost for additional text messages is 10 cents.
Miriam’s bill is $38.50 for month of June.
Calculation:
Let the number of total text messages be x.
Tabulate the given information into the language of algebra.
In words | In Algebra |
Number of text messages | x |
Additional text messages | x-1000 |
Cost of additional messages |
|
Model the equation for the above information.
Simplify the above equation for x,
Thus, Miriam sends total 1285 text messages in a month.
Chapter 1 Solutions
Precalculus - A Custom Text for UNLV
- i need help pleasearrow_forwardQuestion 4 Find an equation of (a) The plane through the point (2, 0, 1) and perpendicular to the line x = y=2t, z=3+4t. 3t, (b) The plane through the point (3, −2, 8) and parallel to the plane z = x+y. (c) The plane that contains the line x = parallel to the plane 5x + 2y + z = 1. 1+t, y2t, z = 43t and is (d) The plane that passes through the point (1,2,3) and contains the line x = 3t, y=1+t, and z = 2 – t. (e) The plane that contains the lines L₁ : x = 1 + t, y = 1 − t, z = = L2 x 2s, y = s, z = 2. 2t andarrow_forwardcan you explain why the correct answer is Aarrow_forward
- See image for questionarrow_forwardFor this question, refer to the a1q4.py Python code that follows the assignment, as well as the dataprovided after the assignment.(a) Modify the code presented to plot the data from the two separate sets of information(from each region).(b) For each population of squirbos, let ` be the length of their front claws and s the mass ofthe skull. Determine for what value of m the s is isometric to `m. Justify it with your log − log plotsfrom (a) and suitable sketched lines.(c) What do you notice about the correlus striatus on your plot?(d) What historically might explain their situation?arrow_forwardPlease see image for question.arrow_forward
- Question 2 Find the shortest distance between the lines [x, y, z] = [1,0,4] + t[1, 3, −1] and [x, y, z] = [0,2,0] + s[2, 1, 1]. [Do not use derivatives.]arrow_forwardPlease see image for the questions.arrow_forwardUse the following graphs to evaluate the given one-sided limit. Answer exactly. y = f (x): y = g(x): 8 6 ν -8-6-4-2 2- 1-2-2 -4 -6 -8 ° 4 lim (f(x)+g(x)) = x+2+ 8 6 2 ν 0 x x 6 8 -8 -6-4-2 2 6 8 -2 -4 -6 -8arrow_forward
- Question 1 The points A = (-2, 3, 2) and B = (4, 1, 4) are reflections of one another in a plane S. Find an equation for S.arrow_forwardThe graph below is the function f (x) -D -3-2 4 3 2 Q2 03 Find lim f(x) = x-1- Find lim f(x) = x−1+ Find lim f(x) = x-1 Find f (-1) = 3 4 5arrow_forwardi circled the correct answer and i did most of the question but i cant figure out how to add both residues to get the correct answer could you please show me how to do itarrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781285741550/9781285741550_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9780134438986/9780134438986_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9780134763644/9780134763644_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781319050740/9781319050740_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9780135189405/9780135189405_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337552516/9781337552516_smallCoverImage.gif)