Solve the following real world problem, destiny opens a checking account with $100 and then deposit $27 each week. How many weeks will it take her for her account to reach $343?

To solve this problem, we can first determine the number of weeks it will take for Destiny's account balance to reach $343 by subtracting her initial deposit of $100 from the target amount of $343, resulting in $343 - $100 = $243.

Next, we divide the remaining balance ($243) by the weekly deposit amount ($27) to find out how many weeks it will take for Destiny's balance to reach $243.

$243 รท $27 = 9

Therefore, it will take Destiny 9 weeks for her account to reach $343.