Barbara and Xylia had equal amount of money. Each day, Barbara spent $19 and Xylia spent $23. When Barbara had $115 left, Xylia had
15 as much money left as Barbara. How much money did the two girls have at first?
| |
Barbara |
Xylia |
| Before |
19 u + 115 |
23 u + 23 |
| Change |
- 19 u |
- 23 u |
| After |
$115 |
$23 |
Amount that Xylia had left
=
15 x 115
= $23
The amount that Barbara and Xylia had at first is the same.
23 u + 23 = 19 u + 115
23 u - 19 u = 115 - 23
4 u = 92
1 u = 92 ÷ 4 = 23
Amount that Barbara had at first
= 19 u + 115
= 19 x 23 + 115
= 437 + 115
= $552
Total amount that both girls had at first
= 2 x 552
= $1104
Answer(s): $1104
