Hazel and Gabby had equal amount of money. Each day, Hazel spent $18 and Gabby spent $25. When Hazel had $84 left, Gabby had
12 as much money left as Hazel. How much money did the two girls have at first?
| |
Hazel |
Gabby |
| Before |
18 u + 84 |
25 u + 42 |
| Change |
- 18 u |
- 25 u |
| After |
$84 |
$42 |
Amount that Gabby had left
=
12 x 84
= $42
The amount that Hazel and Gabby had at first is the same.
25 u + 42 = 18 u + 84
25 u - 18 u = 84 - 42
7 u = 42
1 u = 42 ÷ 7 = 6
Amount that Hazel had at first
= 18 u + 84
= 18 x 6 + 84
= 108 + 84
= $192
Total amount that both girls had at first
= 2 x 192
= $384
Answer(s): $384
