Question

Suppose v varies directly as g,and v = 36 when g = 4.Find v when g = 11.

Answer 1

V ∝ g

⇒ V = Kg

When V = 36 and g = 4, substitute into the formula above

⇒ 36 = K x 4

K = 9

The equation then becomes

V = 9g

when g = 11

V = 9 x 11

V = 99

Explanation: