Jean had
911 as much money as Xandra. Jean received another $42 from her father and Xandra received $8 from her aunt. In the end, Jean had $2 more than Xandra. How much did the girls have altogether in the end?
| |
Jean |
Xandra |
| Before |
9 u |
11 u |
| Change |
+ 42 |
+ 8 |
| After |
9 u + 42 |
11 u + 8 |
If Xandra received another $2 in the end, she would have the same amount of money as Jean.
11 u + 8 + 2 = 9 u + 42
11 u + 10 = 9 u + 42
11 u - 9 u = 42 - 10
2 u = 32
1 u = 32 ÷ 2 = 16
Amount that the girls had in the end
= 9 u + 42 + 11 u + 8
= 9 u + 11 u + 42 + 8
= 20 u + 50
= 20 x 16 + 50
= $370
Answer(s): $370
