Bryan had $47.80 more than Mark. After Mark had spent
29 of his money, Bryan had $59.20 more than Mark. How much money did Bryan have at first?
| |
Bryan |
Mark |
More |
| Before |
9 u + $47.80 |
9 u |
$47.80 |
| Change |
|
- 2 u |
|
| After |
9 u + $47.80 |
7 u |
2 u + $47.80 |
Bryan had $59.20 more than Mark in the end.
9 u + 47.80 - 7 u = 59.20
2 u + 47.80 = 59.20
2 u = 59.20 - 47.80
2 u = 11.40
1 u = 11.40 ÷ 2 = 5.70
Amount that Bryan had at first
= 9 u + 47.80
= 9 x 5.70 + 47.80
= 51.30 + 47.80
= $99.10
Answer(s): $99.10
