Question

If y varies directly as x,and y is 6 when x is 72,what is the valueof y when x is 8

Answer 1

Explanation:

y & x

y = kx

When y = 6 , x = 72

6 = 72k

k = 6/72

k = 1/12

:- y = x/12

When x = 8

y = 8/12

y = 2/3