A department store issues its own credit card, with an interest rate of 2% per month. Explain why this is not the same as an annual rate of 24%. What is the effective annual rate?
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Textbook Solutions for Applied Calculus
Question
Explain how you can match the interest rates (a)(e) with the effective annual rates IV without calculation. (a) 5.5% annual rate, compounded continuously. (b) 5.5% annual rate, compounded quarterly. (c) 5.5% annual rate, compounded weekly. (d) 5% annual rate, compounded yearly. (e) 5% annual rate, compounded twice a year. I. 5% II. 5.06% III. 5.61% IV. 5.651% V. 5.654%
Solution
The first step in solving Appendix B problem number 11 trying to solve the problem we have to refer to the textbook question: Explain how you can match the interest rates (a)(e) with the effective annual rates IV without calculation. (a) 5.5% annual rate, compounded continuously. (b) 5.5% annual rate, compounded quarterly. (c) 5.5% annual rate, compounded weekly. (d) 5% annual rate, compounded yearly. (e) 5% annual rate, compounded twice a year. I. 5% II. 5.06% III. 5.61% IV. 5.651% V. 5.654%
From the textbook chapter Problems for Appendix B you will find a few key concepts needed to solve this.
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