Question

Please Help

Answer 1

It takes 120 minutes for a hose to fill a swimming pool. If the pool drain is open, it takes 360 minutes to fill the pool. If the pool is full, the hose is off, and drain is open, how many minutes does it take to empty the pool?

300 minutes
180 minutes<-----My answer
72 minutes
60 minutes

Answer 2

with what?

Answer 3

@Nnesha

Answer 4

that's right

Answer 5

what do you think the answer is?

Answer 6

180 minutes

Answer 7

Let's use the rate equation
distance = rate *time
except here distance is how many pools completed , which is 1 pool.

rate_in = rate of water entering the pool
rate_out = rate of water exiting the pool

we get two equations
1 pool= rate_in * 120 minutes
1 pool = (rate_in - rate_out)* 360 minutes

from the first equation we solve
rate_in = 1/120 pool/min
plug this into second equation

1 = (1/120 - rate_out ) * 360
solve for rate_out
rate_out = 1/180 pool/min

now answer the question
1 pool = 1/180 pool/min * ( time in minutes)
1/ (1/180) = time

Answer 8

so your answer would be 180 minutes

Answer 9

the answer is 180 ._.

Answer 10

so i was right ok thank you

Answer 11

np