Natalie had $70 less than Fanny at first. After Fanny and Natalie spent an equal amount of money, Natalie had
310 as much as Fanny. How much money did Natalie have left?
| |
Natalie |
Fanny |
Difference |
| Before |
1 u |
1 u + $70 |
$70 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
10 p |
7 p |
Difference in the amounts between Fanny and Natalie
= 10 p - 3 p
= 7 p
Since both Fanny and Natalie spent an equal amount, the difference in the amounts that Fanny and Natalie had at first and in the end remains unchanged.
7 p = 70
1 p = 70 ÷ 7 = 10
Amount that Natalie had left
= 3 p
= 3 x 10
= $30
Answer(s): $30
