Mary had $35 less than Raeann at first. After Raeann and Mary spent an equal amount of money, Mary had
310 as much as Raeann. How much money did Mary have left?
| |
Mary |
Raeann |
Difference |
| Before |
1 u |
1 u + $35 |
$35 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
10 p |
7 p |
Difference in the amounts between Raeann and Mary
= 10 p - 3 p
= 7 p
Since both Raeann and Mary spent an equal amount, the difference in the amounts that Raeann and Mary had at first and in the end remains unchanged.
7 p = 35
1 p = 35 ÷ 7 = 5
Amount that Mary had left
= 3 p
= 3 x 5
= $15
Answer(s): $15
