Answer
Rate of discount is 30%.
Sale price is $126.
Work Step by Step
$54=(r)(180)$
$54\div180=180r\div180$
$0.3=r$
$s=180-54=126$
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: 21
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