24. a tank can be filled by a pipe in 30 minutes and emptied by another pipe in 50 minutes. how many minutes will it take to fill the tank if both pipes are open?

75 minutes

Step-by-step explanation:

The rate at which the tank is filled up, F, and emptied, E, are respectively:

Since V is the full volume of the tank, the time required to fill the tank if both pipes are open is given by:

It will take 75 minutes to fill the tank if both pipes are open.

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~! )