Vanessa had
17 as much money as Erika. Vanessa received another $28 from her aunt and Erika spent $8 on some pens. In the end, Vanessa and Erika had an equal amount of money. How much money did the girls have altogether in the end?
|
Vanessa |
Erika |
Total |
Before |
1 u |
7 u |
|
Change |
+ $28 |
- $8 |
|
After |
1 u + $28 |
7 u - $8 |
8 u + $20 |
Amount of money Vanessa and Erika has is the same in the end.
7 u - 8 = 1 u + 28
7 u - 1 u = 28 + 8
6 u = 36
1 u = 36 ÷ 6 = 6
Amount the girls have in the end
= 1 u + 28 + 7 u - 8
= 8 u + 20
= 8 x 6 + 20
= 48 + 20
= $68
Answer(s): $68