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Proportional numbers ratio simplification

1000BeginnerAlgebra

Brazilian Mathematical Olympiad

Proportional numbers - If $\frac{x}{y}=\frac{3}{z}$, then $9 y^{2}$ is equal to: (a) $\frac{x^{2}}{9}$ (b) $x^{3} z$ (c) $3 x^{2}$ (d) $x^{2} z^{2}$ (e) $\frac{1}{9} x^{2} z^{2}$
0 students attempted0% solvedRating 1000

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