Vanessa had
27 as much money as Risa. Vanessa received another $30 from her aunt and Risa received $2 from her father. In the end, Vanessa had $8 more than Risa. How much did the girls have altogether in the end?
| |
Vanessa |
Risa |
| Before |
2 u |
7 u |
| Change |
+ 30 |
+ 2 |
| After |
2 u + 30 |
7 u + 2 |
If Risa received another $8 in the end, she would have the same amount of money as Vanessa.
7 u + 2 + 8 = 2 u + 30
7 u + 10 = 2 u + 30
7 u - 2 u = 30 - 10
5 u = 20
1 u = 20 ÷ 5 = 4
Amount that the girls had in the end
= 2 u + 30 + 7 u + 2
= 2 u + 7 u + 30 + 2
= 9 u + 32
= 9 x 4 + 32
= $68
Answer(s): $68
