R Bruce N. answered • 09/21/15

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F = M + 72

0.60 * T (total) = F and F = M + 72

also, 0.40 * T = M

T = M/0.4

T = (M + 72)/0.6

T = T, so M = 144 and F must = 216 and T must = 360

Check it out

06.(360) = 216 and 0.4 (360) = 144. So F = M + 72 correct!!