Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 5 - Ratio and Proportion - Test - Page 375: 4

Answer

Ans : = $\frac{9}{2}$

Work Step by Step

3 Hours to 40 minutes. First Write the ratio and divide the common units: So, $\frac{3 hours}{40 Minutes}$ Now find the lowest term $\frac{3 hours}{40 Minutes}$ = $\frac{3 \times 60 minutes}{40 Minutes}$ (As 1 hr = 60 mins) = $\frac{180 minutes}{40 Minutes}$ = $\frac{180}{40}$ (Common units) = $\frac{180 \div 20}{40 \div 20}$ = $\frac{9}{2}$
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