Winnie had
110 as much money as Gem. Winnie received another $38 from her mother and Gem spent $7 on some pens. In the end, Winnie and Gem had an equal amount of money. How much money did the girls have altogether in the end?
| |
Winnie |
Gem |
Total |
| Before |
1 u |
10 u |
|
| Change |
+ $38 |
- $7 |
|
| After |
1 u + $38 |
10 u - $7 |
11 u + $31 |
Amount of money Winnie and Gem has is the same in the end.
10 u - 7 = 1 u + 38
10 u - 1 u = 38 + 7
9 u = 45
1 u = 45 ÷ 9 = 5
Amount the girls have in the end
= 1 u + 38 + 10 u - 7
= 11 u + 31
= 11 x 5 + 31
= 55 + 31
= $86
Answer(s): $86
