Answer
20
Work Step by Step
To express a percent as a decimal, we can move the decimal point two places to the left.
$P = 40\% = 0.4$
A is P percent of B
A = PB
$8 = (0.4)B$
$B = \frac{8}{0.4}$
$B = 20$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 8 - Personal Finance - 8.1 Percent, Sales Tax and Discounts - Exercise Set 8.1 - Page 495: 40
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