Sarah had $33 more than Abi at first. After Sarah and Abi spent an equal amount of money, Abi had
710 as much as Sarah. How much money did Sarah have left?
| |
Sarah |
Abi |
Difference |
| Before |
1 u + $33 |
1 u |
$33 |
| Change |
- 1 |
- 1 |
|
| After |
10 p |
7 p |
3 p |
Difference in the amounts between Sarah and Abi
= 10 p - 7 p
= 3 p
Since both Sarah and Abi spent an equal amount, the difference in the amounts that Sarah and Abi had at first and in the end remains unchanged.
3 p = 33
1 p = 33 ÷ 3 = 11
Amount that Sarah had left
= 10 p
= 10 x 11
= $110
Answer(s): $110
