ACT 2018 April(A09) Math Question 7 Explanation - ACT Helper

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2018 April(A09) Math Question 7
Ratios, Proportions, Percentages, Fractions
- Proportions & Ratios
Choice A
$X Y = 5 k$ $Y Z = 9 k$ $\Rightarrow X Z = 14 k$ $\Rightarrow \frac{X Y}{X Z} = \frac{5 k}{9 k} = \frac{5}{9}$
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