SOLUTION: The amount of simple interest earned on a savings account varies jointly with time, t(in years), and the principal, p(in dollars). After 5 years, interest on $800 in this savings a
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Question 255530: The amount of simple interest earned on a savings account varies jointly with time, t(in years), and the principal, p(in dollars). After 5 years, interest on $800 in this savings account is $260.00. What is the annual interest rate(constant of variation)? Answer by rfer(16322) (Show Source):
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