SOLUTION: a bathtub can be filled by the cold water faucet in eight minutes and by the hot water faucet in 12 minutes. how long does it take to fill the tub if both faucets are open?

Question 890207: a bathtub can be filled by the cold water faucet in eight minutes and by the hot water faucet in 12 minutes. how long does it take to fill the tub if both faucets are open?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
a bathtub can be filled by the cold water faucet in eight minutes and by the hot water faucet in 12 minutes. how long does it take to fill the tub if both faucets are open?
Let x = time (minutes) it takes for both
then
x(1/8 + 1/12) = 1
multiplying both sides by 24:
x(3 + 2) = 24
x(5) = 24
x = 24/5
x = 4.8 minutes
RELATED QUESTIONS
A bathtub can be filled by the cold water faucet in 12 minutes and by the hot water... (answered by stanbon)

A bathtub can be filled by the cold water faucet in 8 minutes and by the hot water faucet (answered by Alan3354)

A bathtub can be filled by the cold water faucet in 13 minutes and by the hot water... (answered by josmiceli)

A bathtub can be filled by the cold water faucet in 5 minutes and by the hot water faucet (answered by josmiceli)

A bathtub can be filled by cold water faucet in 11 minutes and by the hot water faucet in (answered by caseyemm1982)

A bathtub can be filled by cold water faucet in 7 minutes and by the hot water faucet in... (answered by user_dude2008)

A bath can be filled by the cold water faucet in 10 minutes and by the hot water faucet... (answered by solver91311)

A bathtub can be filled in 20 minutes with both faucets running. If the cold water faucet (answered by scott8148)

A sink has two faucets: one for hot water and one for cold water. The sink can be filled... (answered by LinnW,richwmiller)