Julie and Gillian had equal amount of money. Each day, Julie spent $11 and Gillian spent $17. When Julie had $105 left, Gillian had
35 as much money left as Julie. How much money did the two girls have at first?
| |
Julie |
Gillian |
| Before |
11 u + 105 |
17 u + 63 |
| Change |
- 11 u |
- 17 u |
| After |
$105 |
$63 |
Amount that Gillian had left
=
35 x 105
= $63
The amount that Julie and Gillian had at first is the same.
17 u + 63 = 11 u + 105
17 u - 11 u = 105 - 63
6 u = 42
1 u = 42 ÷ 6 = 7
Amount that Julie had at first
= 11 u + 105
= 11 x 7 + 105
= 77 + 105
= $182
Total amount that both girls had at first
= 2 x 182
= $364
Answer(s): $364
