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Chapter 8: Problem 5
In Exercises 1-10, express each fraction as a percent. \(\frac{3}{8}\)
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You would like to have \(\$ 4000\) in four years for a special vacation following college graduation by making deposits at the end of every six months in an annuity that pays \(7 \%\) compounded semiannually. a. How much should you deposit at the end of every six months? b. How much of the \(\$ 4000\) comes from deposits and how much comes from interest?
In Exercises 1-10, use $$ P M T=\frac{P\left(\frac{r}{n}\right)}{\left[1-\left(1+\frac{r}{n}\right)^{-n t}\right]} $$ Round answers to the nearest dollar. Suppose that you borrow $30,000 for four years at 8% for the purchase of a car. Find the monthly payments and the total interest for the loan.
Suppose that you decide to buy a car for \(\$ 29,635\), including taxes and license fees. You saved \(\$ 9000\) for a down payment and can get a five-year car loan at \(6.62 \%\). Find the monthly payment and the total interest for the loan.
In Exercises 11-18, a. Determine the periodic deposit. Round up to the nearest dollar. b. How much of the financial goal comes from deposits and how much comes from interest? $$ \begin{array}{|l|l|l|l|} \hline \text { Periodic Deposit } & \text { Rate } & \text { Time } & \text { Financial Goal } \\ \hline \$ ? \text { at the end of each year } & 6 \% \text { compounded annually } & 18 \text { years } & \$ 140,000 \\ \hline \end{array} $$
Describe two disadvantages of using credit cards. What is a debit card?
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