Jean had
310 as much money as Esther. Jean received another $49 from her father and Esther spent $7 on some staplers. In the end, Jean and Esther had an equal amount of money. How much money did the girls have altogether in the end?
| |
Jean |
Esther |
Total |
| Before |
3 u |
10 u |
|
| Change |
+ $49 |
- $7 |
|
| After |
3 u + $49 |
10 u - $7 |
13 u + $42 |
Amount of money Jean and Esther has is the same in the end.
10 u - 7 = 3 u + 49
10 u - 3 u = 49 + 7
7 u = 56
1 u = 56 ÷ 7 = 8
Amount the girls have in the end
= 3 u + 49 + 10 u - 7
= 13 u + 42
= 13 x 8 + 42
= 104 + 42
= $146
Answer(s): $146
