SOLUTION: For a certain bathtub, the hot water faucet can fill the tub in 13 minutes. The cold water faucet can fill the tub in 7 minutes. If both faucets are used together, how long

Question 947848: For a certain bathtub, the hot water faucet can fill the tub in
13
minutes. The cold water faucet can fill the tub in
7
minutes. If both faucets are used together, how long will it take to fill the tub?
Do not do any rounding
can you help me answer this

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The filling rate for Both faucets filling the tub at the same time is the sum of their rates. The unit should be TUBS per MINUTE. You will then want the reciprocal of the result to have MINUTES per TUB.

Once you understand that, then,
TUBS per MINUTE.
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