Question

a photocopy machine can print 405 copies in 9 minutes. what is the unit rate the machine can produce in 1 minute

Answer 1

45

Explanation:

Let the unit of copies to printed under 1 minute be x. If the photocopier can print 405 copies in 9 minutes. Then in 1 minute, it'll take the machine 405/9= 45. So therefore x=405/9= 45 copies

Answer 2

45 copies per minute.

Explanation:

405 / 9 = x / 1

405 × 1 = 9x

405 = 9x

405 ÷ 9 = x

45 = x