Charlie had $8.70 less than Nick. After Charlie gave $1.80 to Nick, Nick would have four times as much money as Charlie. How much money had Nick at first?
| |
Nick |
Charlie |
| Before |
4 u - $1.80 |
1 u + $1.80 |
| Change |
+ $1.80 |
- $1.80 |
| After |
4 u |
1 u |
Charlie had $8.70 less than Nick. If another $8.70 was given to Charlie, Nick and Charlie would have the same amount at first.
4 u - 1.80 = 1 u + 1.80 + 8.70
4 u - 1 u = 1.80 + 8.70 + 1.80
3 u = 12.30
1 u = 12.30 ÷ 3 = 4.10
Amount that Nick had at first
= 4 u - 1.80
= 4 x 4.10 + 1.80
= 16.40 + 1.80
= $18.20
Answer(s): $18.20
