Barbara had
35 as much money as Fanny. Barbara received another $43 from her mother and Fanny spent $7 on some pens. In the end, Barbara and Fanny had an equal amount of money. How much money did the girls have altogether in the end?
|
Barbara |
Fanny |
Total |
Before |
3 u |
5 u |
|
Change |
+ $43 |
- $7 |
|
After |
3 u + $43 |
5 u - $7 |
8 u + $36 |
Amount of money Barbara and Fanny has is the same in the end.
5 u - 7 = 3 u + 43
5 u - 3 u = 43 + 7
2 u = 50
1 u = 50 ÷ 2 = 25
Amount the girls have in the end
= 3 u + 43 + 5 u - 7
= 8 u + 36
= 8 x 25 + 36
= 200 + 36
= $236
Answer(s): $236