Tiffany had
49 as much money as Abi. Tiffany received another $44 from her aunt and Abi received $7 from her father. In the end, Tiffany had $7 more than Abi. How much did the girls have altogether in the end?
| |
Tiffany |
Abi |
| Before |
4 u |
9 u |
| Change |
+ 44 |
+ 7 |
| After |
4 u + 44 |
9 u + 7 |
If Abi received another $7 in the end, she would have the same amount of money as Tiffany.
9 u + 7 + 7 = 4 u + 44
9 u + 14 = 4 u + 44
9 u - 4 u = 44 - 14
5 u = 30
1 u = 30 ÷ 5 = 6
Amount that the girls had in the end
= 4 u + 44 + 9 u + 7
= 4 u + 9 u + 44 + 7
= 13 u + 51
= 13 x 6 + 51
= $129
Answer(s): $129
