SOLUTION: A bathtub can be filled by cold water faucet in 7 minutes and by the hot water faucet in 10 minutes. How long does it take to fill the tub if both faucets are open?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A bathtub can be filled by cold water faucet in 7 minutes and by the hot water faucet in 10 minutes. How long does it take to fill the tub if both faucets are open?       Log On


   

Question 372470: A bathtub can be filled by cold water faucet in 7 minutes and by the hot water faucet in 10 minutes. How long does it take to fill the tub if both faucets are open?

Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
1/7+1/10=1/t

10/70+7/70=1/t

17/70=1/t

t=70/17

t=4.12 <---- Answer