Yen had $9 more than Jaslyn at first. After Yen and Jaslyn spent an equal amount of money, Jaslyn had
47 as much as Yen. How much money did Yen have left?
|
Yen |
Jaslyn |
Difference |
Before |
1 u + $9 |
1 u |
$9 |
Change |
- 1 |
- 1 |
|
After |
7 p |
4 p |
3 p |
Difference in the amounts between Yen and Jaslyn
= 7 p - 4 p
= 3 p
Since both Yen and Jaslyn spent an equal amount, the difference in the amounts that Yen and Jaslyn had at first and in the end remains unchanged.
3 p = 9
1 p = 9 ÷ 3 = 3
Amount that Yen had left
= 7 p
= 7 x 3
= $21
Answer(s): $21