Elementary Algebra

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

Chapter 4 - Proportions, Percents, and Solving Inequalities - 4.1 - Ratios and Proportions - Problem Set 4.1: 16

Answer

During the sale, the price for a set of four tires is 312 dollars.

Work Step by Step

Surefire’s Repair Shop has a set of four tires for 416 dollars. To find the price per one tire, we need to divide the price, which is 416 dollars, by the number of tires, which is 4. So, $\frac{416\ dollars}{4}$ = 104 dollars. The price for one tire is 104 dollars. During the sale, you get four tires for the price of three tires. Because the price of one tire is 104 dollars, as we found earlier, the price of three tires is 104 $\times$ 3 = 312 dollars. So, during the sale, the price for a set of four tires is 312 dollars.
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