Daniel had $56 more than Julie. After Julie spent
19 of her money, Daniel had twice as much money as Julie. How much money did Daniel have at first?
| |
Daniel |
Julie |
| Before |
16 u |
9 u |
| Change |
|
- 1 u |
| After |
16 u |
8 u |
Amount that Daniel had in the end
= 2 x 8 u
= 16 u
If Julie had another $56 at first, the amounts that Daniel and Julie each had at first will be the same.
16 u = 9 u + 56
16 u - 9 u = 56
7 u = 56
1 u = 56 ÷ 7 = 8
Amount Daniel had at first
= 16 u
= 16 x 8
= $128
Answer(s): $128
