Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 4 - Proportions, Percents, and Solving Inequalities - 4.2 - Percents and Problem Solving - Problem Set 4.2: 29

Answer

The answer is 7.5%.

Work Step by Step

Let X be the number we are looking for. 16.5 is means 16.5= What percent of 220 means X $\times$ 220. So, this question translates to: 16.5 = X $\times$ 220 Divide both sides by 220 X = 0.075 To turn 0.075 into a percentage, we multiply it by 100%. So, 0.075 $\times$ 100% = 7.5%
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