Math Problem Statement
A recent college graduate buys a new car by borrowing $20,000 at 8.4%, compounded monthly, for 5 years. She decides to pay $435 instead of the monthly payment required by the loan.
(a) What is the monthly payment required by the loan? (Round your answer to the nearest cent.) $ _____
How much extra did she pay per month? (Round your answer to the nearest cent.) $ _____
(b) How many $435 payments will she make to pay off the loan? (Round your answer up to the next whole number.) _____ payments
(c) How much will she save by paying $435 per month rather than the required payment? (Round your answer to the nearest cent.) $ _____
Solution
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Math Problem Analysis
Mathematical Concepts
Loan Amortization
Interest Calculation
Financial Mathematics
Formulas
M = P * (r(1 + r)^n) / ((1 + r)^n - 1)
Extra Payment Per Month = Actual Payment - Required Payment
Balance of Loan Formula: B = P * (1 + r)^n - (M * ((1 + r)^n - 1) / r)
Theorems
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Suitable Grade Level
Grades 11-12 or College Freshman
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