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Jobisdone [24]
3 years ago
13

protocol for flushing a cooling water system at a nuclear reactor requires that a drain valve be opened while the fill pumps are

active. the drain valve can empty the tank to thr cut-off in 10 minutes. the pump can fill the rank from the cut-off in 14 minutes. during the flushing process, how long will it take for the initially full tank to reach the cut-off level while following the protocol?​
Mathematics
1 answer:
Lyrx [107]3 years ago
3 0

Answer:

Step-by-step explanation:

drain empties 1/10 of the desired amount per minute

pump fills 1/14 of the desired amount per minute

when both are active, the net drain is 1/10-1/14 = 1/35 of the desired amount per minute

It takes 35 minutes to reach the cut-off level.

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