A faucet can fill a bathtub in 6 minutes. The drain can empty the tub in 10 minutes. If both the faucet in the drain are open at the same time, this situation is represented by this expression, where T is the number of minutes it will take to completely fill the bathtub.
[tex]\frac{t}{6}-\frac{1}{10}[/tex]
which expression can also represent the situation
A. T / 15
B. 4t / 15
C. T^2 / 60
D. T+60 / 60
