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10-04-2021
Mathematics

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if y=12 when x=3, find y when x =15 ( Y varies directly as x)

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z82bc7ct34 z82bc7ct34

10-04-2021

y = kx
when y= 12, x=3
12 = 3k
k = 12/3
k = 4

y = 4x
when x= 15
y = 4(15)
y = 60

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