Question

The value of y varies directly with x when y=8.4 x=3.5 what is the value of y when x is 7.7

Answer 1

18.48

Explanation:

`(x)/(y)` = 3.5/8.4 and 7.7/x will give you 8.4x7.7 = 3.5x and 64.68/3.5 = 18.48