Emily had $10 more than Irene at first. After Emily and Irene spent an equal amount of money, Irene had
57 as much as Emily. How much money did Emily have left?
| |
Emily |
Irene |
Difference |
| Before |
1 u + $10 |
1 u |
$10 |
| Change |
- 1 |
- 1 |
|
| After |
7 p |
5 p |
2 p |
Difference in the amounts between Emily and Irene
= 7 p - 5 p
= 2 p
Since both Emily and Irene spent an equal amount, the difference in the amounts that Emily and Irene had at first and in the end remains unchanged.
2 p = 10
1 p = 10 ÷ 2 = 5
Amount that Emily had left
= 7 p
= 7 x 5
= $35
Answer(s): $35
