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Respondido

A stamping machine can stamp 40 envelopes in 8 minutes. How many of stamping machines, working at the same time, are required to stamp 120 envelopes per minute?

Resposta :

ProfJoaoNeto98go

Resposta:

24 stamping machines.

Explicação passo a passo:

Look that if a single stamping machine can stamp 40 envelopes in 8 minutes, it can stamp [tex]\frac{40}{8} = 5[/tex] envelopes per minute. So, to stamp 120 envelopes per minute we need [tex]\frac{120}{5} = 24[/tex] stamping machines.

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