Gwen had
17 as much money as Anna. Gwen received another $36 from her father and Anna spent $6 on some pens. In the end, Gwen and Anna had an equal amount of money. How much money did the girls have altogether in the end?
|
Gwen |
Anna |
Total |
Before |
1 u |
7 u |
|
Change |
+ $36 |
- $6 |
|
After |
1 u + $36 |
7 u - $6 |
8 u + $30 |
Amount of money Gwen and Anna has is the same in the end.
7 u - 6 = 1 u + 36
7 u - 1 u = 36 + 6
6 u = 42
1 u = 42 ÷ 6 = 7
Amount the girls have in the end
= 1 u + 36 + 7 u - 6
= 8 u + 30
= 8 x 7 + 30
= 56 + 30
= $86
Answer(s): $86