Olivia had
57 as much money as Roshel. Olivia received another $42 from her mother and Roshel received $6 from her aunt. In the end, Olivia had $4 more than Roshel. How much did the girls have altogether in the end?
| |
Olivia |
Roshel |
| Before |
5 u |
7 u |
| Change |
+ 42 |
+ 6 |
| After |
5 u + 42 |
7 u + 6 |
If Roshel received another $4 in the end, she would have the same amount of money as Olivia.
7 u + 6 + 4 = 5 u + 42
7 u + 10 = 5 u + 42
7 u - 5 u = 42 - 10
2 u = 32
1 u = 32 ÷ 2 = 16
Amount that the girls had in the end
= 5 u + 42 + 7 u + 6
= 5 u + 7 u + 42 + 6
= 12 u + 48
= 12 x 16 + 48
= $240
Answer(s): $240
