Kimberly and Roshel had equal amount of money. Each day, Kimberly spent $4 and Roshel spent $13. When Kimberly had $108 left, Roshel had
12 as much money left as Kimberly. How much money did the two girls have at first?
| |
Kimberly |
Roshel |
| Before |
4 u + 108 |
13 u + 54 |
| Change |
- 4 u |
- 13 u |
| After |
$108 |
$54 |
Amount that Roshel had left
=
12 x 108
= $54
The amount that Kimberly and Roshel had at first is the same.
13 u + 54 = 4 u + 108
13 u - 4 u = 108 - 54
9 u = 54
1 u = 54 ÷ 9 = 6
Amount that Kimberly had at first
= 4 u + 108
= 4 x 6 + 108
= 24 + 108
= $132
Total amount that both girls had at first
= 2 x 132
= $264
Answer(s): $264
