Zoe had
18 as much money as Shannon. Zoe received another $42 from her father and Shannon spent $7 on some markers. In the end, Zoe and Shannon had an equal amount of money. How much money did the girls have altogether in the end?
| |
Zoe |
Shannon |
Total |
| Before |
1 u |
8 u |
|
| Change |
+ $42 |
- $7 |
|
| After |
1 u + $42 |
8 u - $7 |
9 u + $35 |
Amount of money Zoe and Shannon has is the same in the end.
8 u - 7 = 1 u + 42
8 u - 1 u = 42 + 7
7 u = 49
1 u = 49 ÷ 7 = 7
Amount the girls have in the end
= 1 u + 42 + 8 u - 7
= 9 u + 35
= 9 x 7 + 35
= 63 + 35
= $98
Answer(s): $98
