Anna had
57 as much money as Gwen. Anna received another $34 from her mother and Gwen received $7 from her aunt. In the end, Anna had $7 more than Gwen. How much did the girls have altogether in the end?
| |
Anna |
Gwen |
| Before |
5 u |
7 u |
| Change |
+ 34 |
+ 7 |
| After |
5 u + 34 |
7 u + 7 |
If Gwen received another $7 in the end, she would have the same amount of money as Anna.
7 u + 7 + 7 = 5 u + 34
7 u + 14 = 5 u + 34
7 u - 5 u = 34 - 14
2 u = 20
1 u = 20 ÷ 2 = 10
Amount that the girls had in the end
= 5 u + 34 + 7 u + 7
= 5 u + 7 u + 34 + 7
= 12 u + 41
= 12 x 10 + 41
= $161
Answer(s): $161
