Respuesta :

We can use proportions!!!
240/30 = x/1 minute

To solve, divide 240 by 30, since 30 minutes is 30 times longer than 1 minute.
240/30 = 8
8 copies per minute.

Desc0Rome
the printer prints 8 copies per minute, expressed by 240 / 30 = 8, you can check this math by multiplying 30 by 8.