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 - Page 155: 15



Work Step by Step

We will use the variable, n, to denote the number that we want to find. We know that the percent (written as a decimal) multiplied by n must be equal to 6.3. Thus, we set up the following equation: .15n=6.3. We divide both sides of the equation by .15 to obtain that n=42.
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