Wendy and Betty went on a tour together. Wendy brought four times as much money as Betty. After Wendy had spent $800 and Betty had spent $110, they had an equal amount of money left. How much money did each of them have at first?
- Betty
- Wendy
|
Wendy |
Betty |
Before |
4 u |
1 u |
Change |
- $800 |
- $110 |
After |
4 u - $800 |
1 u - $110 |
(a)
The amounts that Wendy and Betty had in the end are the same.
4 u - 800 = 1 u - 110
4 u - 1 u = 800 - 110
3 u = 690
1 u = 690 ÷ 3 = 230
Amount that Betty had at first
= 1 u
= $230
(b)
Amount that Wendy had at first
= 4 u
= 4 x 230
= $920
Answer(s): (a) $230, (b) $920