Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.4 - Formulas and Percents - Exercise Set - Page 152: 40



Work Step by Step

$9-5=4$ Therefore, $A=4$ and $B=5$. $A=PB$ $4=P(5)$ $\frac{4}{5}=P$ $0.8=P$ $P=0.8$ Change the decimal to a percent by moving the decimal point two spaces to the right. 0.8=80%
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