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: 16

Answer

a.) -88 dollars b.) 599.50 dollars c.) 755 books

Work Step by Step

There are three questions to answer here: a. Find the profit if you sell 75 books. b. Find the profit if you sell 200 books. c. How many books must you sell to make $3600 in profit? We are given the formula, P = 5.5b - 500.5, where P = profit and b = amount of books sold. So, for question "a": P = 5.5b - 500.5 P = 5.5 × 75 - 500.5 P = 412.5 - 500.5 P = -88 For question "b": P = 5.5b - 500.5 P = 5.5 × 200 - 500.5 P = 1,100 - 500.5 P = 599.5 For question "c": P = 5.5b - 500.5 3,600 = 5.5b - 500.5 4,150.5 = 5.5b b = 754.636... Rationally, this answer means one must sell 755 whole books to break 3,600 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.