Zeph had $65.50 more than Cody. After Cody had spent
79 of his money, Zeph had $115.20 more than Cody. How much money did Zeph have at first?
|
Zeph |
Cody |
More |
Before |
9 u + $65.50 |
9 u |
$65.50 |
Change |
|
- 7 u |
|
After |
9 u + $65.50 |
2 u |
7 u + $65.50 |
Zeph had $115.20 more than Cody in the end.
9 u + 65.50 - 2 u = 115.20
7 u + 65.50 = 115.20
7 u = 115.20 - 65.50
7 u = 49.70
1 u = 49.70 ÷ 7 = 7.10
Amount that Zeph had at first
= 9 u + 65.50
= 9 x 7.10 + 65.50
= 63.90 + 65.50
= $129.40
Answer(s): $129.40