Gabby and Wendy had equal amount of money. Each day, Gabby spent $5 and Wendy spent $7. When Gabby had $80 left, Wendy had
34 as much money left as Gabby. How much money did the two girls have at first?
| |
Gabby |
Wendy |
| Before |
5 u + 80 |
7 u + 60 |
| Change |
- 5 u |
- 7 u |
| After |
$80 |
$60 |
Amount that Wendy had left
=
34 x 80
= $60
The amount that Gabby and Wendy had at first is the same.
7 u + 60 = 5 u + 80
7 u - 5 u = 80 - 60
2 u = 20
1 u = 20 ÷ 2 = 10
Amount that Gabby had at first
= 5 u + 80
= 5 x 10 + 80
= 50 + 80
= $130
Total amount that both girls had at first
= 2 x 130
= $260
Answer(s): $260
