Anna and Risa had equal amount of money. Each day, Anna spent $17 and Risa spent $19. When Anna had $96 left, Risa had
34 as much money left as Anna. How much money did the two girls have at first?
| |
Anna |
Risa |
| Before |
17 u + 96 |
19 u + 72 |
| Change |
- 17 u |
- 19 u |
| After |
$96 |
$72 |
Amount that Risa had left
=
34 x 96
= $72
The amount that Anna and Risa had at first is the same.
19 u + 72 = 17 u + 96
19 u - 17 u = 96 - 72
2 u = 24
1 u = 24 ÷ 2 = 12
Amount that Anna had at first
= 17 u + 96
= 17 x 12 + 96
= 204 + 96
= $300
Total amount that both girls had at first
= 2 x 300
= $600
Answer(s): $600
