Tiffany had
25 as much money as Mary. Tiffany received another $50 from her aunt and Mary received $2 from her uncle. In the end, Tiffany had $6 more than Mary. How much did the girls have altogether in the end?
| |
Tiffany |
Mary |
| Before |
2 u |
5 u |
| Change |
+ 50 |
+ 2 |
| After |
2 u + 50 |
5 u + 2 |
If Mary received another $6 in the end, she would have the same amount of money as Tiffany.
5 u + 2 + 6 = 2 u + 50
5 u + 8 = 2 u + 50
5 u - 2 u = 50 - 8
3 u = 42
1 u = 42 ÷ 3 = 14
Amount that the girls had in the end
= 2 u + 50 + 5 u + 2
= 2 u + 5 u + 50 + 2
= 7 u + 52
= 7 x 14 + 52
= $150
Answer(s): $150
