Gabriel had $30 more than Sarah. After Sarah spent
13 of her money, Gabriel had four times as much money as Sarah. How much money did Gabriel have at first?
| |
Gabriel |
Sarah |
| Before |
8 u |
3 u |
| Change |
|
- 1 u |
| After |
8 u |
2 u |
Amount that Gabriel had in the end
= 4 x 2 u
= 8 u
If Sarah had another $30 at first, the amounts that Gabriel and Sarah each had at first will be the same.
8 u = 3 u + 30
8 u - 3 u = 30
5 u = 30
1 u = 30 ÷ 5 = 6
Amount Gabriel had at first
= 8 u
= 8 x 6
= $48
Answer(s): $48
