Stamp Machine
Stamp Machine A stamp machine can stamp 300 evelopes in 12 minutes at this rate how many can it stamp in 3 minutes? 300/12 = X/3 Cross multiply: (300)(3) = 12X 900 = 12X X = 900/12 = 75 ...
Stamp Machine
Stamp Machine A stamp machine can stamp 300 evelopes in 12 minutes at this rate how many can it stamp in 3 minutes? 300/12 = X/3 Cross multiply: (300)(3) = 12X 900 = 12X X = 900/12 = 75 ...
Stamp Machine