Final answer:
To calculate the balance at the end of each month until the debt is paid off, use the formula: New Balance = Previous Balance - Payment + Expenses + (Previous Balance × Monthly Interest Rate).
Step-by-step explanation:
To calculate the balance at the end of each month until the debt is paid off, we will need to use the formula: New Balance = Previous Balance - Payment + Expenses + (Previous Balance imes Monthly Interest Rate)
Let's calculate the balance for each month:
- Month 0: Payment = $200, Expenses = $80, Interest = $0, New Balance = $1200 - $200 + $80 + ($1200 imes 0.015) = $1342.00
- Month 1: Payment = $200, Expenses = $80, Interest = $1342.00 imes 0.015 = $20.13, New Balance = $1342.00 - $200 + $80 + $20.13 = $1242.13
- Month 2: Payment = $200, Expenses = $80, Interest = $1242.13 imes 0.015 = $18.63, New Balance = $1242.13 - $200 + $80 + $18.63 = $1141.76
- Continue this process until the balance reaches zero.