Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 6 - Percent - 6.2 Percents and Fractions - 6.2 Exercises - Page 400: 77

Answer

(a) $\frac{4}{5}$ or 80% or 0.8 (b) $\frac{1}{5}$ or 20% or 0.2

Work Step by Step

(a) Reduce $\frac{64}{80}$ by 16 to get $\frac{4}{5}$ $\frac{1}{5}$=0.2 so $\frac{4}{5}$=4$\times$0.2=0.8 0.8=80% (b) 1-$\frac{4}{5}$=$\frac{1}{5}$ 1-0.8=0.2 100%-80%=20%
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