That relates the two variables. Then solve.
If y varies directly with x and y = 10 when x = 3
Write an equation relating y and x
If e varies directly with w, and e = 32 when w = 80
Write an equation relating e and w
TYPE
Find y when x = 6
Find e when w - 130
TYPE
TYPE
If a varies directly with b, and a = 4 when b = 24
Ifw varles directly with v, and w = 6 when v = 2
Write an equation relating w and v
Write an equation relating a and b
TYPE
TYPE
Find v when w-12
Find y when b - 42
TYPE
TYPE