Question

Copy machine can make 250 copies in 4 minutes. Represent
rate of change in copies per minute.

Answer 1

62.5 copies per minute

Explanation:

Note that the word "per" means divide. So, a rate of change in "copies per minute", means a number of copies divided by a number of minutes

If the copy machine can make 250 copies in 4 minutes, then the number of copies is 250 copies, and the number of minutes is 4 minutes:

`\text{rate of change in copies per minute}=\frac{\text{number of copies}}{\text{number of minutes}}`

`\text{rate of change in copies per minute}=\frac{\text{250 copies}}{\text{4 minutes}}`

`\text{rate of change in copies per minute}=62.5\frac{\text{copies}}{\text{minute}}`