Jade had $9 less than Nicole at first. After Nicole and Jade spent an equal amount of money, Jade had
710 as much as Nicole. How much money did Jade have left?
|
Jade |
Nicole |
Difference |
Before |
1 u |
1 u + $9 |
$9 |
Change |
- 1 |
- 1 |
|
After |
7 p |
10 p |
3 p |
Difference in the amounts between Nicole and Jade
= 10 p - 7 p
= 3 p
Since both Nicole and Jade spent an equal amount, the difference in the amounts that Nicole and Jade had at first and in the end remains unchanged.
3 p = 9
1 p = 9 ÷ 3 = 3
Amount that Jade had left
= 7 p
= 7 x 3
= $21
Answer(s): $21