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Asked by Anonymous

y is directly proportional to x. y=36 when x=5. By writing an equation of proportionality, work out the value of y when x=8.
7 years ago

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Answered by Steve
y = kx
so, y/x = k, a constant

so, you want

y/8 = 36/5
7 years ago
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y is directly proportional to x. y=36 when x=5. By writing an equation of proportionality, work out the value of y when x=8.

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