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 2 years ago
Pump 1 can empty a pool in 9 hours while Pump 2 can empty the same pool in 12 hours. If the two pumps worked together, how long would it take them to empty the pool?
 2 years ago
Pump 1 can empty a pool in 9 hours while Pump 2 can empty the same pool in 12 hours. If the two pumps worked together, how long would it take them to empty the pool?

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timia618
 2 years ago
Best ResponseYou've already chosen the best response.0Solve the following inequality: 2x + 6 ≤ 5x  9

estudier
 2 years ago
Best ResponseYou've already chosen the best response.0Pump 1 does 1/9 per hour and Pump 2 does 1/12 per hour

timia618
 2 years ago
Best ResponseYou've already chosen the best response.0how many hours then together?

estudier
 2 years ago
Best ResponseYou've already chosen the best response.0Work out how much the two are doing per hour together and u can easily get your answer...

timia618
 2 years ago
Best ResponseYou've already chosen the best response.0about 5 hours about 5 hours and 10 minutes about 5 hours and 20 minutes about 5 hours and 30 minutes ?

Algebraic!
 2 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 1pool }{ 9 hours }*T hours + \frac{ 1pool }{ 12 hours}*Thours = 1 pool\] t/9 + t/12 =1

Algebraic!
 2 years ago
Best ResponseYou've already chosen the best response.0you solved for t and got t=5?

Algebraic!
 2 years ago
Best ResponseYou've already chosen the best response.0multiply the whole equation by (9*12)

Algebraic!
 2 years ago
Best ResponseYou've already chosen the best response.0yes, multiply the whole equation by 108

Algebraic!
 2 years ago
Best ResponseYou've already chosen the best response.0it will be easier for you if you leave 108 as 9*12 , but do it however you like...

timia618
 2 years ago
Best ResponseYou've already chosen the best response.0so the answerr is 5hr and 30mns

Algebraic!
 2 years ago
Best ResponseYou've already chosen the best response.0what did you get for t?

timia618
 2 years ago
Best ResponseYou've already chosen the best response.0A plane traveling from Dallas to New York with a tailwind of 30 miles per hour takes 4.5 hours. Returning with the headwind, it takes the same plane 5 hours. What is the average speed of the plane in calm conditions? A plane traveling from Dallas to New York with a tailwind of 30 miles per hour takes 4.5 hours. Returning with the headwind, it takes the same plane 5 hours. What is the average speed of the plane in calm conditions?

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0go right to the answer, no agony \[\frac{9\times 12}{9+12}\]

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0i seriously doubt \[\frac{9\times 12}{9+12}=9\]

timia618
 2 years ago
Best ResponseYou've already chosen the best response.0so the answer is 5hrs?
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