Gabriel had $70.70 more than Peter. After Peter had spent
47 of his money, Gabriel had $137.10 more than Peter. How much money did Gabriel have at first?
|
Gabriel |
Peter |
More |
Before |
7 u + $70.70 |
7 u |
$70.70 |
Change |
|
- 4 u |
|
After |
7 u + $70.70 |
3 u |
4 u + $70.70 |
Gabriel had $137.10 more than Peter in the end.
7 u + 70.70 - 3 u = 137.10
4 u + 70.70 = 137.10
4 u = 137.10 - 70.70
4 u = 66.40
1 u = 66.40 ÷ 4 = 16.60
Amount that Gabriel had at first
= 7 u + 70.70
= 7 x 16.60 + 70.70
= 116.20 + 70.70
= $186.90
Answer(s): $186.90