Amachine can stamp 40 envelopes in 8 minutes. how many of these machines, working simultaneously, are required or needed to stamp 120 envelopes per minute?

The number of machines, working simultaneously, that are required or needed to stamp 120 envelopes per minute is 3 machines.

Given the following data:

To find how many machines, working simultaneously, are required or needed to stamp 120 envelopes per minute:

In order to solve this mathematical problem, we would use direct proportion.

By direct proportion:

40 envelopes = 8 minutes

120 envelopes = X minutes

Cross-multiplying, we have:

X = 24 minutes

For the number of machines:

Machine = 3 machines

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Divide 40 by 8 minutes to find the quantity per minute for one machine:

40 / 8 = 5 per minute.

One machine does 5 envelopes per minute.

Now divide 120 by 5 to find the number of machines needed:

120 / 5 = 24

24 machines would be needed.

something over 10 so ? /10

step-by-step explanation:

don't report but were is the digram

step-by-step explanation: