Oscar had $85.10 more than Tim. After Tim had spent
49 of his money, Oscar had $93.90 more than Tim. How much money did Oscar have at first?
| |
Oscar |
Tim |
More |
| Before |
9 u + $85.10 |
9 u |
$85.10 |
| Change |
|
- 4 u |
|
| After |
9 u + $85.10 |
5 u |
4 u + $85.10 |
Oscar had $93.90 more than Tim in the end.
9 u + 85.10 - 5 u = 93.90
4 u + 85.10 = 93.90
4 u = 93.90 - 85.10
4 u = 8.80
1 u = 8.80 ÷ 4 = 2.20
Amount that Oscar had at first
= 9 u + 85.10
= 9 x 2.20 + 85.10
= 19.80 + 85.10
= $104.90
Answer(s): $104.90
