Basic College Mathematics (10th Edition)

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 397: 48


$\frac{4}{5}$, 80%

Work Step by Step

We are given the decimal .8. To write .8 as a percentage, we must multiply by 100 and attach a percent sign to the end. $.8=(.8\times100)$%=80% 80%=$80\div100=\frac{80}{100}=\frac{80\div20}{100\div20}=\frac{4}{5}$ Therefore, $\frac{4}{5}=.8$=80%
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