Cindy had
310 as much money as Cathy. Cindy received another $27 from her aunt and Cathy spent $8 on some markers. In the end, Cindy and Cathy had an equal amount of money. How much money did the girls have altogether in the end?
| |
Cindy |
Cathy |
Total |
| Before |
3 u |
10 u |
|
| Change |
+ $27 |
- $8 |
|
| After |
3 u + $27 |
10 u - $8 |
13 u + $19 |
Amount of money Cindy and Cathy has is the same in the end.
10 u - 8 = 3 u + 27
10 u - 3 u = 27 + 8
7 u = 35
1 u = 35 ÷ 7 = 5
Amount the girls have in the end
= 3 u + 27 + 10 u - 8
= 13 u + 19
= 13 x 5 + 19
= 65 + 19
= $84
Answer(s): $84
