Question

A copy machine makes
28
copies per minute. How many copies does it make in
4
minutes and
30
seconds?

Answer 1

one minute how many second have ?

Answer 2

ebony this is same with the past exercise

Answer 3

60

Answer 4

one minute has 60 seconds

so now you know that this machine make 28 copies in 60 seconds

28 copies in 60 sec.
x copies in 4 min. 30 sec.

4 min. 30 sec. equal 4*60 +30 = 240 +30 = 270 sec.

28 copies ----- 60 sec.
x copies ----- 270 sec.
------------------------
x = 270*28/60 = ? sec.

Answer 5

sorry x will get in copies not sec. i confused it with the past exercise

so this mean that you get with this result exactly the right answer easy

Answer 6

so 126?

Answer 7

yes 126 copies

Answer 8

ok. ?

Answer 9

do you have questions ?