Opal had
57 as much money as Abi. Opal received another $43 from her uncle and Abi received $9 from her aunt. In the end, Opal had $2 more than Abi. How much did the girls have altogether in the end?
| |
Opal |
Abi |
| Before |
5 u |
7 u |
| Change |
+ 43 |
+ 9 |
| After |
5 u + 43 |
7 u + 9 |
If Abi received another $2 in the end, she would have the same amount of money as Opal.
7 u + 9 + 2 = 5 u + 43
7 u + 11 = 5 u + 43
7 u - 5 u = 43 - 11
2 u = 32
1 u = 32 ÷ 2 = 16
Amount that the girls had in the end
= 5 u + 43 + 7 u + 9
= 5 u + 7 u + 43 + 9
= 12 u + 52
= 12 x 16 + 52
= $244
Answer(s): $244
