Cathy had
38 as much money as Vanessa. Cathy received another $33 from her mother and Vanessa spent $12 on some pencils. In the end, Cathy and Vanessa had an equal amount of money. How much money did the girls have altogether in the end?
| |
Cathy |
Vanessa |
Total |
| Before |
3 u |
8 u |
|
| Change |
+ $33 |
- $12 |
|
| After |
3 u + $33 |
8 u - $12 |
11 u + $21 |
Amount of money Cathy and Vanessa has is the same in the end.
8 u - 12 = 3 u + 33
8 u - 3 u = 33 + 12
5 u = 45
1 u = 45 ÷ 5 = 9
Amount the girls have in the end
= 3 u + 33 + 8 u - 12
= 11 u + 21
= 11 x 9 + 21
= 99 + 21
= $120
Answer(s): $120
