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Amortized Loans (MAT 142) Amortized Loans

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Amortized Loans (MAT 142) Objectives Calculate the monthly payment for a simple interest amortized loan. Calculate the total interest for a simple interest amortized loans. Create an amortization schedule for a simple interest amortized loan. Calculate monthly payments that will produce a given future value.

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**Vocabulary amortized loan simple interest amortized loan**

Amortized Loans (MAT 142) Vocabulary amortized loan simple interest amortized loan amortization schedule unpaid balance

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**Formulas Simple Interest Amortized Loan Formula Interest Paid**

Amortized Loans (MAT 142) Formulas Simple Interest Amortized Loan Formula Interest Paid

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**Formulas Unpaid Balance Formula**

Amortized Loans (MAT 142) Formulas Unpaid Balance Formula T is the number of years from the beginning of the loan to the present

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Amortized Loans (MAT 142) Find the monthly payment and total interest for a simple interest amortized loan of $20000 at annual interest for 5½ years.

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Amortized Loans (MAT 142) Shirley Trembly bought a house for $187,600. She put 20% down and obtained a simple interest amortized loan for the balance at for 30 years. Find her monthly payment. Find the total interest. Prepare an amortization schedule for the first two months of the loan.

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**Amortization Schedule Steps:**

Amortized Loans (MAT 142) Amortization Schedule Steps: Find the interest on amount use – Use the simple interest formula. Principal portion is payment minus interest portion. New balance is previous balance minus principal portion. For the last period Principal portion is previous balance. Total payment is sum of principal portion and interest portion.

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**Amortization Schedule Steps:**

Amortized Loans (MAT 142) Amortization Schedule Steps: Payment Number Principal Portion Interest Portion Total Payment Balance loan amount first through next-to-last total payment minus interest portion simple interest on previous balance I = Prt use simple interest amortized loan formula previous balance minus this payment’s principal portion last previous balance principal portion plus interest portion $0.00

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Amortized Loans (MAT 142) Shirley Trembly bought a house for $187,600. She put 20% down and obtained a simple interest amortized loan for the balance at for 30 years. Most lenders will approve a home loan only if the total of all the borrower’s monthly payments, including the home loan payment is no more than 38% of the borrower’s monthly income. How much must Ms. Trembly make in order to qualify for the loan?

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Amortized Loans (MAT 142) Shirley Trembly bought a house for $187,600. She put 20% down and obtained a simple interest amortized loan for the balance at for 30 years. 20 years have passed and Shirley Trembly wants to pay off the balance on her house. If there is no pre-payment penalty, what will it cost for Shirley to pay off the unpaid balance of her home loan?

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**a. Find the monthly payment for each loan. **

Amortized Loans (MAT 142) Barry Wood want to buy a used car that costs $ He has two possible loans in mind. One loan is through the car dealer: it is a 3-year add-on interest loan at 6% and requires a down payment of $300. The second loan is through his credit union; it is a 3-year simple interest amortized loan at 9.5% and requires a 10% down payment. a. Find the monthly payment for each loan. Find the total interest paid for each loan. Which loan should Barry chose and why?

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Amortized Loans (MAT 142) Some lenders are now offering 15-year home loans. Investigate the effect of the term on home loans by finding the monthly payment and total interest for a loan of $ at 10% for the following terms 15 years 30 years

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