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02-03-2016
Mathematics

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Find y when X=14 if y varies directly with X2, and y=72 when X=6.

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RASEA23 RASEA23

02-03-2016

When y varies directly with x, y=kx where k is a constant.
Find k
72=6k
k=12
Plug k back into the equation to find y
y=12*14
y=168

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