COMBINED VARIATION
1. P varies directly as S and inversely as T.
2. A varies jointly as x and y and inversely as the square of w.
3. Variable B varies directly as g and inversely as the square ofi.
4. Variable R varies directly as the square of k and inversely as the square
root of u.
5.M is directly proportional to o and inversely proportional to the product of p
and r.​