Math Problem Statement
You take out a 30-year $100,000 mortgage loan with an APR of 6% and monthly payments. In 12 years, you decide to sell your house and pay off the mortgage. What is the principal balance on the loan?
Solution
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Math Problem Analysis
Mathematical Concepts
Loan Amortization
Time Value of Money
Exponential Growth and Decay
Formulas
Monthly Payment Formula: M = P × [r(1 + r)^n] / [(1 + r)^n - 1]
Remaining Balance Formula: B_k = P × [(1 + r)^n - (1 + r)^k] / [(1 + r)^n - 1]
Theorems
Loan Amortization Principle
Suitable Grade Level
Grades 11-12 or College Level
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