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