caramel

1 Questions
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330

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+28

Proportions

a is directly proportional to m and n^2, and inversely proportional to y^3. If a=9 when m=2, n=8 and y=4, solve for a when m=6, n=7 and y=3.

I know the formula for direct and inverse proportions (y=kx and y=k/x), but I'm not entirely read more ..

caramel Jan 12, 2022