SOLUTION: Can you assist with thie equation - One pipe can empty a tank 2.5 hours faster than another pipe. Starting with a full tank it would take 2 pipes 7.5 hours to empty. How long doe

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Can you assist with thie equation - One pipe can empty a tank 2.5 hours faster than another pipe. Starting with a full tank it would take 2 pipes 7.5 hours to empty. How long doe      Log On


   

Question 860199: Can you assist with thie equation - One pipe can empty a tank 2.5 hours faster than another pipe. Starting with a full tank it would take 2 pipes 7.5 hours to empty. How long does it take the faster pipe working alone to empty the full tank?
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
Two different pipes,
1%2Ft and 1%2F%28t-2.5%29 separate emptying rates.
Combined rate, 1%2F7.5

Solve this equation for t:
1%2Ft%2B1%2F%28t-2.5%29=1%2F7.5.

The faster pipe is one one for time t-2.5.