Gabby had
310 as much money as Opal. Gabby received another $37 from her mother and Opal spent $12 on some pencils. In the end, Gabby and Opal had an equal amount of money. How much money did the girls have altogether in the end?
| |
Gabby |
Opal |
Total |
| Before |
3 u |
10 u |
|
| Change |
+ $37 |
- $12 |
|
| After |
3 u + $37 |
10 u - $12 |
13 u + $25 |
Amount of money Gabby and Opal has is the same in the end.
10 u - 12 = 3 u + 37
10 u - 3 u = 37 + 12
7 u = 49
1 u = 49 ÷ 7 = 7
Amount the girls have in the end
= 3 u + 37 + 10 u - 12
= 13 u + 25
= 13 x 7 + 25
= 91 + 25
= $116
Answer(s): $116
