Dana and Esther had equal amount of money. Each day, Dana spent $19 and Esther spent $25. When Dana had $108 left, Esther had
13 as much money left as Dana. How much money did the two girls have at first?
| |
Dana |
Esther |
| Before |
19 u + 108 |
25 u + 36 |
| Change |
- 19 u |
- 25 u |
| After |
$108 |
$36 |
Amount that Esther had left
=
13 x 108
= $36
The amount that Dana and Esther had at first is the same.
25 u + 36 = 19 u + 108
25 u - 19 u = 108 - 36
6 u = 72
1 u = 72 ÷ 6 = 12
Amount that Dana had at first
= 19 u + 108
= 19 x 12 + 108
= 228 + 108
= $336
Total amount that both girls had at first
= 2 x 336
= $672
Answer(s): $672
