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: 89

Answer

313 cars

Work Step by Step

They should try to wash 313 cars because you cannot wash a fraction of a car to get exactly 400 dollars. So you round to the next whole number to get slightly more than 400 dollars.
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