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