Brandon had $81.90 more than Tim. After Tim had spent
67 of his money, Brandon had $170.70 more than Tim. How much money did Brandon have at first?
|
Brandon |
Tim |
More |
Before |
7 u + $81.90 |
7 u |
$81.90 |
Change |
|
- 6 u |
|
After |
7 u + $81.90 |
1 u |
6 u + $81.90 |
Brandon had $170.70 more than Tim in the end.
7 u + 81.90 - 1 u = 170.70
6 u + 81.90 = 170.70
6 u = 170.70 - 81.90
6 u = 88.80
1 u = 88.80 ÷ 6 = 14.80
Amount that Brandon had at first
= 7 u + 81.90
= 7 x 14.80 + 81.90
= 103.60 + 81.90
= $185.50
Answer(s): $185.50