SOLUTION: one pipe can fill a pool in 6 hours. The drain can empty the whole pool in 12 hours. With a pipe on the drain open, how long would it take the pool to be filled

Question 935129: one pipe can fill a pool in 6 hours. The drain can empty the whole pool in 12 hours. With a pipe on the drain open, how long would it take the pool to be filled
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
r = w/t
t = w/r
---
rates are additive:
---
r = 1/6 - 1/12
t = 1/r
t = 1/(1/6 - 1/12)
t = 12 hours
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
RELATED QUESTIONS
One inlet pipe can fill an empty pool in 6 hours, and a drain can empty the pool in 9... (answered by ewatrrr)

One inlet pipe can fill an empty pool in 6 hours, and a drain can empty the pool in 10... (answered by greenestamps,josgarithmetic)

One pipe can fill a pool in 8 hours. The drain can empty it in 14 hours. With the pipe on (answered by drk,ankor@dixie-net.com)

One pipe can fill a pool in 8 hours. The drain can empty it in 14 hours. With the pipe... (answered by edjones)

One inlet pipe can fill an empty pool in 4 hours, and a drain can empty the pool in 8... (answered by josmiceli)

one inlet pipe can fill an empty pool in 4 hours, and a drain can empty the pool in 8... (answered by Alan3354)

One inlet pipe can fill an empty pool in 4 hours, and a drain can empty the pool in 10... (answered by stanbon,mananth)

One inlet pipe can fill an empty pool in 8 hours, and a drain can empty the pool in 16... (answered by josgarithmetic)

A pipe ca fill a pool in 9 hours. The drain can empty the pool in 12 hours. I f the drain (answered by dolly)