Question 79765

Melanie paints barns at the rate of 1/x barns per day

Melissa paints barns at the rate of 1/2x barns per day

Together they paint barns at the rate of 1/x+1/2x barns per day

1/x=2/2x

So in one day they can paint 2/2x+1/2x=3/2x of the barn

If x=5, then they can paint 3/10 of the barn in 1 day


Hope this helps----ptaylor