If y varies directly as x and y = 70 when x = 10, find y when x = 36.
252
2,520
25,200
5.14

252

Step-by-step explanation:

y varies directly with x means y=kx where k is a constant.

A constant means it never changes no matter what the point (x,y) they give.

So y=kx means y/x=k (I just divided both sides by x here).

So we have the following proportion to solve:

70/10 reduces to 7:

Multiply both sides by 36:

Simplify left hand side:

So y is 252 when x is 36.

h/o/e/s mad

step-by-step explanation:

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