Answer
(a) $\frac{1}{4}$ or 25% or 0.25
(b) $\frac{3}{4}$ or 75% or 0.75
Work Step by Step
(a)
Reduce $\frac{160}{640}$ by 160 to get $\frac{1}{4}$
$\frac{1}{4}$=0.25=25%
(b)
1-$\frac{1}{4}$=$\frac{3}{4}$
$\frac{3}{4}$=.75=75%
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 - 6.2 Percents and Fractions - 6.2 Exercises - Page 400: 78
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