Question

a copy machine makes 24 copies per minute how many copies does it make in 4 minutes and 15 seconds!!!:)

Answer 1

The easiest way to do this is cross multiply so you do 24/1=x/4.15

Answer 2

102 copies
24/4=6
24 x 4 =96
96 + 6 =102

Answer 3

let x- be copies copied in one minute

x=24

since there are 60 seconds in one minute
4+15/60 =17/4

17/4 (x)
17/4 (24)
=408/4
=102 copies