3 years ago

If you buy 6 boxes of cereal for $10, how much will 9 boxes of cereal cost?

1 answer:

3 0

$\bf \begin{array}{ccllll}
amount&\$\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
6&10\\
9&x
\end{array}\implies \cfrac{6}{9}=\cfrac{10}{x}$

solve for "x"

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