Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1 - Linear Functions - 1.1 Solving Linear Equations - 1.1 Exercises - Page 11: 15

Answer

a. -150 dollars b. 300 dollars c. 867 t-shirts

Work Step by Step

We are given the formula, P = 1.5t - 300, where P = profit and t = amount of t-shirts sold. So, for question "a": P = 1.5t - 300 P = 1.5 × 100 - 300 P = 150 - 300 P = -150 For question "b": P = 1.5t - 300 P = 1.5 × 400 - 300 P = 600 - 300 P = 300 For question "c": P = 1.5t - 300 1,000 = 1.5t - 300 1,300 = 1.5t t = 866.666... Rationally, that means one must sell 867 whole t-shirts to break 1,000 dollars.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.