If m varies directly as p, and m = 24 when p = 6, find m when p is 8.

Answer 1

m varies directly as p ----> m = kp
when m=24,p=6
24 = k(6)
k = 4

so we know
m = 4p

sub in p = 8

or .... just use a simple ratio equation
8/6 = m/24
solve for m