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16-12-2016
Mathematics

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Variable y varies directly with variable x, and y=16 when x= 12

y= ___ x

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yixuann yixuann

18-12-2016

when y is directly proportional to x,
y=kx (k is a constant)
when x=12, y=16
12k=16
k=4/3
hence, y=4/3x

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