Tiffany and Jaslyn had equal amount of money. Each day, Tiffany spent $4 and Jaslyn spent $10. When Tiffany had $105 left, Jaslyn had
57 as much money left as Tiffany. How much money did the two girls have at first?
| |
Tiffany |
Jaslyn |
| Before |
4 u + 105 |
10 u + 75 |
| Change |
- 4 u |
- 10 u |
| After |
$105 |
$75 |
Amount that Jaslyn had left
=
57 x 105
= $75
The amount that Tiffany and Jaslyn had at first is the same.
10 u + 75 = 4 u + 105
10 u - 4 u = 105 - 75
6 u = 30
1 u = 30 ÷ 6 = 5
Amount that Tiffany had at first
= 4 u + 105
= 4 x 5 + 105
= 20 + 105
= $125
Total amount that both girls had at first
= 2 x 125
= $250
Answer(s): $250
