Question

Suppose r varies directly as the square of​ m, and inversely as s. If r equals 16when m equals 9 and s equals 9​, find r when m equals 27 and s equals 9.

Answer 1

144

Explanation:

r = k m^2 / s <====given ( k is proportionality constant)

16 = k ( 9^2) / 9 shows k = 1 7/9

then:

r = 1 7/9 * 27^2 / 9 = 144