It takes three identical water pumps 8 hours to fill a pool. c how long would it take four of these same pumps to fill the pool, assuming they all pump at the same rate?

6 hours

Step-by-step explanation:

We can think of this problem as a "work" problem and use the formula:

work = rate x time

Let p be the rate of a single pump.  So the total rate of 3 pumps is 3p. And the total time is 8 hours, so the work needed to fill a pool is:

work = 3p x 8 = 24p

We need 24p to fill up a pool.

So what happens when you have 4 pumps? That is a rate of 4p.  So how much time is needed to fill up a pool that requires 24p of work?

Solve by using the work = rate x time equation:

24p = 4p x t

6 = t

6 hours.

konichiwa~! my name is zalgo and i am here to answer your anime-related question today. more than likely, kirishima would kill izuku, marry mino and kiss momo. all of this would be my opinion by the way. (and i am also a weeb lol)

i hope this you! : d

stay and stay proud! " - zalgo

(and do you think you can mark me as brainliest? i'd greatly appreciate it! arigato~! )

i think it is 18

step-by-step explanation: