Tina and Nicole had equal amount of money. Each day, Tina spent $13 and Nicole spent $21. When Tina had $96 left, Nicole had
512 as much money left as Tina. How much money did the two girls have at first?
| |
Tina |
Nicole |
| Before |
13 u + 96 |
21 u + 40 |
| Change |
- 13 u |
- 21 u |
| After |
$96 |
$40 |
Amount that Nicole had left
=
512 x 96
= $40
The amount that Tina and Nicole had at first is the same.
21 u + 40 = 13 u + 96
21 u - 13 u = 96 - 40
8 u = 56
1 u = 56 ÷ 8 = 7
Amount that Tina had at first
= 13 u + 96
= 13 x 7 + 96
= 91 + 96
= $187
Total amount that both girls had at first
= 2 x 187
= $374
Answer(s): $374
