Penelope had
15 as much money as Hilda. Penelope received another $41 from her mother and Hilda spent $7 on some files. In the end, Penelope and Hilda had an equal amount of money. How much money did the girls have altogether in the end?
|
Penelope |
Hilda |
Total |
Before |
1 u |
5 u |
|
Change |
+ $41 |
- $7 |
|
After |
1 u + $41 |
5 u - $7 |
6 u + $34 |
Amount of money Penelope and Hilda has is the same in the end.
5 u - 7 = 1 u + 41
5 u - 1 u = 41 + 7
4 u = 48
1 u = 48 ÷ 4 = 12
Amount the girls have in the end
= 1 u + 41 + 5 u - 7
= 6 u + 34
= 6 x 12 + 34
= 72 + 34
= $106
Answer(s): $106