Tim had $89.90 more than Caden. After Caden had spent
78 of his money, Tim had $164.10 more than Caden. How much money did Tim have at first?
| |
Tim |
Caden |
More |
| Before |
8 u + $89.90 |
8 u |
$89.90 |
| Change |
|
- 7 u |
|
| After |
8 u + $89.90 |
1 u |
7 u + $89.90 |
Tim had $164.10 more than Caden in the end.
8 u + 89.90 - 1 u = 164.10
7 u + 89.90 = 164.10
7 u = 164.10 - 89.90
7 u = 74.20
1 u = 74.20 ÷ 7 = 10.60
Amount that Tim had at first
= 8 u + 89.90
= 8 x 10.60 + 89.90
= 84.80 + 89.90
= $174.70
Answer(s): $174.70
