Elementary Algebra

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

Chapter 4 - Proportions, Percents, and Solving Inequalities - Chapter 4 Review Problem Set - Page 183: 31


The answer is 420.

Work Step by Step

Let X be the number we are looking for. 30% of what number means 30% $\times$ X. So, this question translates to: 30% $\times$ X = 126 0.3 $\times$ X = 126 Divide both sides by 0.3 X = 420
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