Math Problem Statement
The doubling time of an investment is the amount of time it takes to double in value. If an investment with 3.5% annual compound interest is worth $2000, find its doubling time. The doubling time is enter your response here years.
Solution
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Math Problem Analysis
Mathematical Concepts
Compound Interest
Logarithms
Exponential Growth
Formulas
T = ln(2) / ln(1 + r) (Doubling Time Formula)
Compound Interest Formula: A = P(1 + r/n)^(nt)
Theorems
Rule of 70 (Approximation for Doubling Time)
Suitable Grade Level
Grades 10-12
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