Answer
The rate of discount is 25%.
The sale price is $28.50.
Work Step by Step
$9.50=(r)(38)$
$9.50\div38=38r\div38$
$0.25=r$
$s=38-9.50=28.50$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
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
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