Reggie had $30 more than Kathy. After Kathy spent
17 of her money, Reggie had twice as much money as Kathy. How much money did Reggie have at first?
| |
Reggie |
Kathy |
| Before |
12 u |
7 u |
| Change |
|
- 1 u |
| After |
12 u |
6 u |
Amount that Reggie had in the end
= 2 x 6 u
= 12 u
If Kathy had another $30 at first, the amounts that Reggie and Kathy each had at first will be the same.
12 u = 7 u + 30
12 u - 7 u = 30
5 u = 30
1 u = 30 ÷ 5 = 6
Amount Reggie had at first
= 12 u
= 12 x 6
= $72
Answer(s): $72
