Cole had $12.80 less than Ben. After Cole gave $2.20 to Ben, Ben would have five times as much money as Cole. How much money had Ben at first?
| |
Ben |
Cole |
| Before |
5 u - $2.20 |
1 u + $2.20 |
| Change |
+ $2.20 |
- $2.20 |
| After |
5 u |
1 u |
Cole had $12.80 less than Ben. If another $12.80 was given to Cole, Ben and Cole would have the same amount at first.
5 u - 2.20 = 1 u + 2.20 + 12.80
5 u - 1 u = 2.20 + 12.80 + 2.20
4 u = 17.20
1 u = 17.20 ÷ 4 = 4.30
Amount that Ben had at first
= 5 u - 2.20
= 5 x 4.30 + 2.20
= 21.50 + 2.20
= $23.70
Answer(s): $23.70
