Tammy and Jade had equal amount of money. Each day, Tammy spent $7 and Jade spent $11. When Tammy had $80 left, Jade had
14 as much money left as Tammy. How much money did the two girls have at first?
| |
Tammy |
Jade |
| Before |
7 u + 80 |
11 u + 20 |
| Change |
- 7 u |
- 11 u |
| After |
$80 |
$20 |
Amount that Jade had left
=
14 x 80
= $20
The amount that Tammy and Jade had at first is the same.
11 u + 20 = 7 u + 80
11 u - 7 u = 80 - 20
4 u = 60
1 u = 60 ÷ 4 = 15
Amount that Tammy had at first
= 7 u + 80
= 7 x 15 + 80
= 105 + 80
= $185
Total amount that both girls had at first
= 2 x 185
= $370
Answer(s): $370
