Dylan had $5.50 less than Paul. After Dylan gave $3.10 to Paul, Paul would have four times as much money as Dylan. How much money had Paul at first?
| |
Paul |
Dylan |
| Before |
4 u - $3.10 |
1 u + $3.10 |
| Change |
+ $3.10 |
- $3.10 |
| After |
4 u |
1 u |
Dylan had $5.50 less than Paul. If another $5.50 was given to Dylan, Paul and Dylan would have the same amount at first.
4 u - 3.10 = 1 u + 3.10 + 5.50
4 u - 1 u = 3.10 + 5.50 + 3.10
3 u = 11.70
1 u = 11.70 ÷ 3 = 3.90
Amount that Paul had at first
= 4 u - 3.10
= 4 x 3.90 + 3.10
= 15.60 + 3.10
= $18.70
Answer(s): $18.70
