Questions from College Mathematics


Q: If the inflation rate averages 4% per year compounded annually for

If the inflation rate averages 4% per year compounded annually for the next 5 years, what will a car that costs $17,000 now cost 5 years from now?

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Q: To complete the sale of a house, the seller accepts a

To complete the sale of a house, the seller accepts a 180-day note for $10,000 at 7% simple interest. (Both interest and principal are repaid at the end of 180 days.) Wishing to use the money sooner f...

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Q: The university president selected 2 of her vice-presidents to attend

The university president selected 2 of her vice-presidents to attend the dedication ceremony of a new branch campus.

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Q: In a suburb, housing costs have been increasing at 5.

In a suburb, housing costs have been increasing at 5.2% per year compounded annually for the past 8 years. A house worth $260,000 now would have had what value 8 years ago?

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Q: Use the commission schedule from Company A shown in Table 2 to

Use the commission schedule from Company A shown in Table 2 to find the annual rate of interest earned by each investment. An investor purchases 450 shares at $21.40 a share, holds the stock for 26 w...

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Q: (A) Starting with formula (1), derive each of

(A) Starting with formula (1), derive each of the following formulas: (B) Explain why it is unnecessary to memorize the formulas above for P, i, and n if you know formula (1).

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Q: Use the commission schedule from Company B shown in Table 3 to

Use the commission schedule from Company B shown in Table 3 to find the annual rate of interest earned by each investment. An investor purchases 75 shares at $37.90 a share, holds the stock for 150 da...

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Q: If you deposit $10,000 in a savings account now

If you deposit $10,000 in a savings account now, what rate compounded continuously would be required for you to withdraw $12,500 at the end o

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Q: Many tax preparation firms offer their clients a refund anticipation loan (

Many tax preparation firms offer their clients a refund anticipation loan (RAL). For a fee, the firm will give a client his refund when the return is filed. The loan is repaid when the IRS refund is s...

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Q: A married couple has $15,000 toward the purchase of

A married couple has $15,000 toward the purchase of a house. For the house that the couple wants to buy, a down payment of $20,000 is required. How long will the money have to be invested at 7% compou...

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