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

Respuesta :

musiclover10045

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.

Lanuel

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

Given the following data:

  • Number of envelopes = 40 envelopes
  • Time = 8 minutes

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:

[tex]40 \times X = 8 \times 120\\\\40X = 960\\\\X = \frac{960}{40}[/tex]

X = 24 minutes

For the number of machines:

[tex]Machine = \frac{24}{8}[/tex]

Machine = 3 machines

Read more: https://brainly.com/question/18676621

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