Min had
15 as much money as Diana. Min received another $45 from her aunt and Diana spent $7 on some notebooks. In the end, Min and Diana had an equal amount of money. How much money did the girls have altogether in the end?
|
Min |
Diana |
Total |
Before |
1 u |
5 u |
|
Change |
+ $45 |
- $7 |
|
After |
1 u + $45 |
5 u - $7 |
6 u + $38 |
Amount of money Min and Diana has is the same in the end.
5 u - 7 = 1 u + 45
5 u - 1 u = 45 + 7
4 u = 52
1 u = 52 ÷ 4 = 13
Amount the girls have in the end
= 1 u + 45 + 5 u - 7
= 6 u + 38
= 6 x 13 + 38
= 78 + 38
= $116
Answer(s): $116