Valen had $3.80 less than Glen. After Valen gave $2.90 to Glen, Glen would have four times as much money as Valen. How much money had Glen at first?
| |
Glen |
Valen |
| Before |
4 u - $2.90 |
1 u + $2.90 |
| Change |
+ $2.90 |
- $2.90 |
| After |
4 u |
1 u |
Valen had $3.80 less than Glen. If another $3.80 was given to Valen, Glen and Valen would have the same amount at first.
4 u - 2.90 = 1 u + 2.90 + 3.80
4 u - 1 u = 2.90 + 3.80 + 2.90
3 u = 9.60
1 u = 9.60 ÷ 3 = 3.20
Amount that Glen had at first
= 4 u - 2.90
= 4 x 3.20 + 2.90
= 12.80 + 2.90
= $15.70
Answer(s): $15.70
