Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 6 - Section 6.2 - Proportions - Exercise Set: 61

Answer

14$\frac{28}{30}$ $\approx$ 14.9

Work Step by Step

$\frac{3.2}{0,3}$ =$\frac{x}{1.4}$ 0.3$\times$ x = 3.2$\times$1.4 set cross products equal 0.3x = 4.48 multiply $\frac{0.3x}{0.3}$=$\frac{4.48}{0.3}$ x=$\frac{448}{30}$ x=14$\frac{28}{30}$ x$\approx$14.9 Check $\frac{3,2}{0,3}$ =$\frac{x}{1.4}$ $\frac{3,2}{0,3}$ =$\frac{\frac{448}{30}}{1.4}$ $\frac{32}{3}$ =$\frac{\frac{448}{30}}{\frac{14}{10}}$ $\frac{32}{3}$ =$\frac{448}{30}$$\times$$\frac{10}{14}$ $\frac{32}{3}$ =$\frac{32}{3}$ True 14$\frac{28}{30}$ is the solution
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