Math Problem Statement
Find the simple interest rate per cent per annum if $4,000 grows to $5,000 in 5 years.
Solution
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Math Problem Analysis
Mathematical Concepts
Simple Interest
Algebra
Linear Equations
Formulas
Simple Interest formula: A = P(1 + rt)
Rate of interest formula: r = (A - P) / (Pt)
Theorems
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Suitable Grade Level
Grades 6-8
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