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Financial Algebra © Cengage/South-Western Slide 1 4-4 CREDIT CARDS Become familiar with the basic vocabulary of credit cards. Compute an average daily.

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Presentation on theme: "Financial Algebra © Cengage/South-Western Slide 1 4-4 CREDIT CARDS Become familiar with the basic vocabulary of credit cards. Compute an average daily."— Presentation transcript:

1 Financial Algebra © Cengage/South-Western Slide CREDIT CARDS Become familiar with the basic vocabulary of credit cards. Compute an average daily balance. OBJECTIVES

2 Financial Algebra © Cengage Learning/South-Western Slide 2 credit card impulse buying revolving charge account charge card Truth-in-Lending Act Fair Credit Billing Act Fair Debt Collection Practices Act debit card Electronic Funds Transfer Act average daily balance mean Key Terms

3 Financial Algebra © Cengage Learning/South-Western Slide 3 Example 1 Frank lost his credit card in a local mall. He notified his creditor before the card was used. However, later in the day, someone found the card and charged $700 worth of hockey equipment on it. How much is Frank responsible for paying?

4 Financial Algebra © Cengage Learning/South-Western Slide 4 Carrie ’ s credit card was stolen. She didn ’t realize it for days, at which point she notified her creditor. During that time, someone charged $2,000. How much is Carrie responsible for paying? CHECK YOUR UNDERSTANDING

5 Financial Algebra © Cengage Learning/South-Western Slide 5 Example 2 Credit card companies issue a monthly statement, therefore APR (annual percentage rate) must be converted to a monthly percentage rate. If the APR is 21.6%, what is the monthly interest rate?

6 Financial Algebra © Cengage Learning/South-Western Slide 6 If a monthly statement shows a monthly interest rate of x percent, express the APR algebraically. CHECK YOUR UNDERSTANDING

7 Financial Algebra © Cengage Learning/South-Western Slide 7 EXAMPLE 3 Rebecca did not pay last month ’ s credit card bill in full. Below is a list of Rebecca ’ s daily balances for her last billing cycle. For seven days she owed $ For three days she owed $1, For six days she owed $ For nine days she owed $2, For five days show owed $2, Find Rebecca ’ s average daily balance.

8 Financial Algebra © Cengage Learning/South-Western Slide 8 Last month, Paul had a daily balance of x dollars for 6 days, y dollars for 12 days, w dollars for q days, and d dollars for 2 days. Express the average daily balance algebraically. CHECK YOUR UNDERSTANDING

9 Financial Algebra © Cengage Learning/South-Western Slide 9 EXAMPLE 4 Rebecca (from Example 3) pays a finance charge on her average daily balance of $1, Her APR is 18%. What is her finance charge for this billing cycle?

10 Financial Algebra © Cengage Learning/South-Western Slide 10 Steve owes a finance charge this month because he didn ’ t pay his bill in full last month. His average daily balance is d dollars and his APR is p percent. Express his finance charge algebraically. CHECK YOUR UNDERSTANDING


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