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Suppose y varies directly as x. If y = 150 when x = 3, find y when x = 5.

User Lucca
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1 Answer

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To find y when x = 5, we can use the next proportion:


(150)/(y)=(3)/(5)

Solving for y:


\begin{gathered} 150\cdot5=3\cdot y \\ (750)/(3)=y \\ 250\text{ = y} \end{gathered}

User Alessandro Fazzi
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