Rachel had
35 as much money as Dana. Rachel received another $30 from her father and Dana spent $12 on some pens. In the end, Rachel and Dana had an equal amount of money. How much money did the girls have altogether in the end?
|
Rachel |
Dana |
Total |
Before |
3 u |
5 u |
|
Change |
+ $30 |
- $12 |
|
After |
3 u + $30 |
5 u - $12 |
8 u + $18 |
Amount of money Rachel and Dana has is the same in the end.
5 u - 12 = 3 u + 30
5 u - 3 u = 30 + 12
2 u = 42
1 u = 42 ÷ 2 = 21
Amount the girls have in the end
= 3 u + 30 + 5 u - 12
= 8 u + 18
= 8 x 21 + 18
= 168 + 18
= $186
Answer(s): $186