Pierre had $51.70 more than Liam. After Liam had spent
23 of his money, Pierre had $60.90 more than Liam. How much money did Pierre have at first?
| |
Pierre |
Liam |
More |
| Before |
3 u + $51.70 |
3 u |
$51.70 |
| Change |
|
- 2 u |
|
| After |
3 u + $51.70 |
1 u |
2 u + $51.70 |
Pierre had $60.90 more than Liam in the end.
3 u + 51.70 - 1 u = 60.90
2 u + 51.70 = 60.90
2 u = 60.90 - 51.70
2 u = 9.20
1 u = 9.20 ÷ 2 = 4.60
Amount that Pierre had at first
= 3 u + 51.70
= 3 x 4.60 + 51.70
= 13.80 + 51.70
= $65.50
Answer(s): $65.50
