The Values of y varies directly with x
So, y = m * x
where m is constant
when y = 30 , x = 5
so,
30 = m * 5
m = 30/5 = 6
so, y = 6x
when x = 7, then solve to find y
y = 6 * 7 = 42
8.6m questions
11.2m answers