Gabby had $63 less than Julie at first. After Julie and Gabby spent an equal amount of money, Gabby had
310 as much as Julie. How much money did Gabby have left?
| |
Gabby |
Julie |
Difference |
| Before |
1 u |
1 u + $63 |
$63 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
10 p |
7 p |
Difference in the amounts between Julie and Gabby
= 10 p - 3 p
= 7 p
Since both Julie and Gabby spent an equal amount, the difference in the amounts that Julie and Gabby had at first and in the end remains unchanged.
7 p = 63
1 p = 63 ÷ 7 = 9
Amount that Gabby had left
= 3 p
= 3 x 9
= $27
Answer(s): $27
