Elementary Algebra

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

Chapter 3 - Equations and Problem Solving - Chapter 3 Test: 18

Answer

The number we need to find is 72.

Work Step by Step

Let X represent the number. Two-thirds of the number means $\frac{2}{3}$ $\times$ X. $\frac{2}{3}$ $\times$ X = $\frac{2X}{3}$ We know that two-thirds of the number equals 48. So, $\frac{2X}{3}$ = 48. Multiply both sides by 3. 2X = 144 Divide both sides by 2. X = 72
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