Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 6 - Percent - 6.6 Solving Application Problems with Percent - 6.6 Exercises - Page 440: 22


The rate of discount is 25%. The sale price is $28.50.

Work Step by Step

$9.50=(r)(38)$ $9.50\div38=38r\div38$ $0.25=r$ $s=38-9.50=28.50$
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