Victoria and Winnie had equal amount of money. Each day, Victoria spent $9 and Winnie spent $12. When Victoria had $80 left, Winnie had
58 as much money left as Victoria. How much money did the two girls have at first?
|
Victoria |
Winnie |
Before |
9 u + 80 |
12 u + 50 |
Change |
- 9 u |
- 12 u |
After |
$80 |
$50 |
Amount that Winnie had left
=
58 x 80
= $50
The amount that Victoria and Winnie had at first is the same.
12 u + 50 = 9 u + 80
12 u - 9 u = 80 - 50
3 u = 30
1 u = 30 ÷ 3 = 10
Amount that Victoria had at first
= 9 u + 80
= 9 x 10 + 80
= 90 + 80
= $170
Total amount that both girls had at first
= 2 x 170
= $340
Answer(s): $340