Ken had four times as much money as Sabrina. After Ken had given Sabrina $159, they had an equal amount of money left. How much money did each of them have at first?
- Sabrina
- Ken
|
Sabrina |
Ken |
Before |
1 u |
4 u |
Change |
+ $159 |
- $159 |
After |
1 u + $159 |
4 u - $159 |
The amounts that Ken and Sabrina had in the end are the same.
4 u - 159 = 1 u + 159
4 u - 1 u = 159 + 159
3 u = 318
1 u = 318 ÷ 3 = 106
Amount that Sabrina had at first
= 1 u
= $106
Amount that Ken had at first
= 4 u
= 4 x 106
= $424
Answer(s): (a) $106; (b) $424