Question

1. If y varies directly as x, and y=40 when x=16, find y when x=30 answer?

Answer 1

If y = 40 when x = 16 that means y is (40/16) time greater than x.

So, if x = 30, y = (40/16) x 30 Which equals 75.

If x = 30, y = 75. Hope This Helps :)