Answer
20%
Work Step by Step
$\frac{part}{whole}=\frac{percent}{100}$
$\frac{680}{3400}=\frac{p}{100}$
Cross multiply to solve for p.
$3400p=(680)(100)$
$3400p\div3400=68000\div3400$
$p=20$
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 6 - Percent - Test - Page 472: 13
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