SOLUTION: A sink can be filled from the faucet in 9 minutes. It takes only 5 minutes to empty the sink when the drain is open. If the sink is full and both the faucet and the drain are open,
Algebra.Com
Question 767485: A sink can be filled from the faucet in 9 minutes. It takes only 5 minutes to empty the sink when the drain is open. If the sink is full and both the faucet and the drain are open, how long will it take to empty the sink?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
A sink can be filled from the faucet in 9 minutes. It takes only 5 minutes to empty the sink when the drain is open. If the sink is full and both the faucet and the drain are open, how long will it take to empty the sink?
***
1/9=work rate of faucet
1/5=work rate of drain
let x=time it takes to empty the sink with both faucet and drain open
x/5-x/9=100% of job=1
9x-5x=45
4x=45
x=45/4=11-1/4 minutes
RELATED QUESTIONS
a sink can be filled from the faucet in 5 minutes. it takes only 3 minutes to empty the... (answered by greenestamps)
A faucet can fill a sink in 5 minutes. It takes twice that long for the drain to empty... (answered by mananth)
Please help me with this word problem:
A faucet can fill a sink in 8 minutes. If the... (answered by richwmiller)
A water faucet can fill a sink in 15 minutes, whereas the drain can empty it in 6... (answered by josgarithmetic,ikleyn)
A water faucet can fill a sink in 6 minutes, whereas the drain can empty it in 4 minutes. (answered by lwsshak3)
It takes 4 minutes for the faucet to fill a sink. It takes 3 minutes for the drain to... (answered by ptaylor)
a water faucet can fill a sink in 6 minutes, whereas the drain can empty it in 4 minutes. (answered by ankor@dixie-net.com)
A sink has two faucets: one for hot water and one for cold water. The sink can be filled... (answered by FrankM,richwmiller)
A sink has two faucets: one for hot water and one for cold water. The sink can be filled... (answered by josmiceli)