Nora had
35 as much money as Sabrina. Nora received another $45 from her father and Sabrina received $7 from her aunt. In the end, Nora had $8 more than Sabrina. How much did the girls have altogether in the end?
| |
Nora |
Sabrina |
| Before |
3 u |
5 u |
| Change |
+ 45 |
+ 7 |
| After |
3 u + 45 |
5 u + 7 |
If Sabrina received another $8 in the end, she would have the same amount of money as Nora.
5 u + 7 + 8 = 3 u + 45
5 u + 15 = 3 u + 45
5 u - 3 u = 45 - 15
2 u = 30
1 u = 30 ÷ 2 = 15
Amount that the girls had in the end
= 3 u + 45 + 5 u + 7
= 3 u + 5 u + 45 + 7
= 8 u + 52
= 8 x 15 + 52
= $172
Answer(s): $172
