Joelle had
79 as much money as Shiyun. Joelle received another $35 from her mother and Shiyun received $9 from her uncle. In the end, Joelle had $2 more than Shiyun. How much did the girls have altogether in the end?
| |
Joelle |
Shiyun |
| Before |
7 u |
9 u |
| Change |
+ 35 |
+ 9 |
| After |
7 u + 35 |
9 u + 9 |
If Shiyun received another $2 in the end, she would have the same amount of money as Joelle.
9 u + 9 + 2 = 7 u + 35
9 u + 11 = 7 u + 35
9 u - 7 u = 35 - 11
2 u = 24
1 u = 24 ÷ 2 = 12
Amount that the girls had in the end
= 7 u + 35 + 9 u + 9
= 7 u + 9 u + 35 + 9
= 16 u + 44
= 16 x 12 + 44
= $236
Answer(s): $236
