SOLUTION: The hot-water faucet takes four minutes to fill a tub, and the cold-water faucet takes three minutes for the same job. How long will it take to fill the tub if both faucets are use

Algebra ->  Rate-of-work-word-problems -> SOLUTION: The hot-water faucet takes four minutes to fill a tub, and the cold-water faucet takes three minutes for the same job. How long will it take to fill the tub if both faucets are use      Log On


   

Question 847606: The hot-water faucet takes four minutes to fill a tub, and the cold-water faucet takes three minutes for the same job. How long will it take to fill the tub if both faucets are used?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/4+1/3=1/x
3/12+4/12=1/x
7/12=1/x
12/7=x