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3 years ago

12

One cooy machine can run off copies in 198 minutes. A newer machine can do the same job in 126 minutes. How long does it take th

e two machines, working together, to make all of the necessary copies?

1 answer:

yanalaym [24]3 years ago

4 0

This depends on the necessary number of copies.

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Answer:

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Step-by-step explanation:

we know that

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