Vanessa had $9 more than Roshel at first. After Vanessa and Roshel spent an equal amount of money, Roshel had
710 as much as Vanessa. How much money did Vanessa have left?
| |
Vanessa |
Roshel |
Difference |
| Before |
1 u + $9 |
1 u |
$9 |
| Change |
- 1 |
- 1 |
|
| After |
10 p |
7 p |
3 p |
Difference in the amounts between Vanessa and Roshel
= 10 p - 7 p
= 3 p
Since both Vanessa and Roshel spent an equal amount, the difference in the amounts that Vanessa and Roshel had at first and in the end remains unchanged.
3 p = 9
1 p = 9 ÷ 3 = 3
Amount that Vanessa had left
= 10 p
= 10 x 3
= $30
Answer(s): $30
