# Chapter 6 - Section 6.2 - Proportions - Practice - Page 424: 8

4.5

#### Work Step by Step

$\frac{y}{9}$ =$\frac{0.6}{1.2}$ 1.2$\times$ y = 9$\times$0.6 set cross products equal 1.2y = 5.4 multiply $\frac{1.2y}{1.2}$=$\frac{5.4}{1.2}$ y=$\frac{1.8}{0.4}$ y=$\frac{18}{4}$ y=4.5 Check $\frac{y}{9}$ =$\frac{0.6}{1.2}$ $\frac{4.5}{9}$ =$\frac{0.6}{1.2}$ 0.5=0.5 True 4.5 is the solution

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