Charlie had $1.20 less than Seth. After Charlie gave $2.70 to Seth, Seth would have four times as much money as Charlie. How much money had Seth at first?
| |
Seth |
Charlie |
| Before |
4 u - $2.70 |
1 u + $2.70 |
| Change |
+ $2.70 |
- $2.70 |
| After |
4 u |
1 u |
Charlie had $1.20 less than Seth. If another $1.20 was given to Charlie, Seth and Charlie would have the same amount at first.
4 u - 2.70 = 1 u + 2.70 + 1.20
4 u - 1 u = 2.70 + 1.20 + 2.70
3 u = 6.60
1 u = 6.60 ÷ 3 = 2.20
Amount that Seth had at first
= 4 u - 2.70
= 4 x 2.20 + 2.70
= 8.80 + 2.70
= $11.50
Answer(s): $11.50
