Ivory and Sabrina had equal amount of money. Each day, Ivory spent $6 and Sabrina spent $8. When Ivory had $105 left, Sabrina had
37 as much money left as Ivory. How much money did the two girls have at first?
| |
Ivory |
Sabrina |
| Before |
6 u + 105 |
8 u + 45 |
| Change |
- 6 u |
- 8 u |
| After |
$105 |
$45 |
Amount that Sabrina had left
=
37 x 105
= $45
The amount that Ivory and Sabrina had at first is the same.
8 u + 45 = 6 u + 105
8 u - 6 u = 105 - 45
2 u = 60
1 u = 60 ÷ 2 = 30
Amount that Ivory had at first
= 6 u + 105
= 6 x 30 + 105
= 180 + 105
= $285
Total amount that both girls had at first
= 2 x 285
= $570
Answer(s): $570
