Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 6 - Percent - 6.6 Solving Application Problems with Percent - 6.6 Exercises - Page 440: 21


Rate of discount is 30%. Sale price is $126.

Work Step by Step

$54=(r)(180)$ $54\div180=180r\div180$ $0.3=r$ $s=180-54=126$
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