Vincent had $38.50 more than Zane. After Zane had spent
29 of his money, Vincent had $77.10 more than Zane. How much money did Vincent have at first?
| |
Vincent |
Zane |
More |
| Before |
9 u + $38.50 |
9 u |
$38.50 |
| Change |
|
- 2 u |
|
| After |
9 u + $38.50 |
7 u |
2 u + $38.50 |
Vincent had $77.10 more than Zane in the end.
9 u + 38.50 - 7 u = 77.10
2 u + 38.50 = 77.10
2 u = 77.10 - 38.50
2 u = 38.60
1 u = 38.60 ÷ 2 = 19.30
Amount that Vincent had at first
= 9 u + 38.50
= 9 x 19.30 + 38.50
= 173.70 + 38.50
= $212.20
Answer(s): $212.20
