Answer:
Explanation:
Here are the steps to solve the problem:
Theresa had $1000 in her checking account.
Theresa had a balance of $800 to pay on a loan.
Theresa used money from her checking account to make a payment that decreased her loan to half of the balance.
The payment amount is equal to the original balance minus half of the original balance:
Payment amount = $800 - ($800/2) = $400
After the payment, the loan balance is now half of the original balance:
New loan balance = $800/2 = $400
To find her new checking account balance, we need to subtract the payment amount from her original checking account balance:
New checking account balance = $1000 - $400 = $600
Therefore, Theresa's new checking account balance is $600.