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Assume y varies directly as x.

If x = 24 when y = 24, what is the value of
k?

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If y varies directly with x, then there is a relation
y=kx .....(1)
where k is a constant.
Substitute x=24, y=24 into equation one and find the value of k.

Y= KX
24 = K(24)
24/24 = K
1= K

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