Kimberly and Gillian had equal amount of money. Each day, Kimberly spent $13 and Gillian spent $15. When Kimberly had $116 left, Gillian had
12 as much money left as Kimberly. How much money did the two girls have at first?
| |
Kimberly |
Gillian |
| Before |
13 u + 116 |
15 u + 58 |
| Change |
- 13 u |
- 15 u |
| After |
$116 |
$58 |
Amount that Gillian had left
=
12 x 116
= $58
The amount that Kimberly and Gillian had at first is the same.
15 u + 58 = 13 u + 116
15 u - 13 u = 116 - 58
2 u = 58
1 u = 58 ÷ 2 = 29
Amount that Kimberly had at first
= 13 u + 116
= 13 x 29 + 116
= 377 + 116
= $493
Total amount that both girls had at first
= 2 x 493
= $986
Answer(s): $986
