Question

If y varies directly as x, and y is 6 when x is 72, what is the value of y when x is 82

Answer 1

y = 41/6

Explanation:

This means that y = kx. k is a constant.

6 = k*72

and.

y = k*82 ...

k = 6/72 = 1/12

y = 82/12

y = 41/6