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mario62 [17]
3 years ago
8

Two grain-collecting machines can collect all the grain from a field 9 days faster than if the first one was doing it alone and

4 days faster than if the second one was working alone. How long does it take each grain-collecting machine to collect all the grain by itself?
Mathematics
1 answer:
Paul [167]3 years ago
7 0
I would say the answer would be 36
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Answer:

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Step-by-step explanation:

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