Part 1 – Simple Interest - Calculating simple interest

Solution: Since we wish to calculate the total amount of interest due on a simple interest loan, we use the formula I = Prt. The principal, P, is the amount borrowed, so we set P = 1500. The interest rate 12.0% is converted to r = 0.12 and the time, given in months, is converted to 15/12 years. ................
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