Mathematics, 25.04.2020 03:48, MemnochRize

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There are two machines that produce aluminum cans. The newer machine can produce 4200 cans in 210 minutes. It takes the older machine 280 minutes to produce that many cans. If the two machines work together, how long will it take them to produce 4200 cans?
how many minutes?

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There are two machines that produce aluminum cans. The newer machine can produce 4200 c...