An inlet pipe can fill a tank in 4 minutes. A drain can empty the tank in 6 minutes. If the tank is empty and both the pipe and drain are open, how long will it take before the tank overflows? 

A. 10 minutes
B. 6 minutes
C. 2 minutes
D. 22 minutes
E. 12 minutes


Answer: E

Mathematics

You might also like to view...

Solve the problem.Evaluate  at t = ? for the function w = ; x = sin t, y = cost, z = t2.

A.
B. - 
C. - 
D. - 

Mathematics

Add or subtract as indicated. Write your answer in the form a + bi.(3 - 7i) + (2 + 3i)

A. 5 + 4i B. 1 + 10i C. -5 + 4i D. 5 - 4i

Mathematics

Find the difference.-12 - (-1)

A. 11 B. -13 C. 13 D. -11

Mathematics

Tell whether the relation is a function.

A. Function B. Not a function

Mathematics