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3 years ago

8

two pipes together can fill a tank in 12 hours alone the smaller pipe can take 7 hours longer than the larger pipe takes to fill

the tank how long does it take the smaller pipe alone to fill the tank

1 answer:

Rashid [163]3 years ago

3 0

Well you should just have to add 7 to 12.

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Answer:

(9,21)

Step-by-step explanation:

If you plug in all the pairs, the only one that is true is (9,21).

y=x+12

21=9+12

The above equation is true, and that is why (9,21) is the answer.

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