Chapter 1: Problem 76
If you spend \(\$ 1000\) each day, estimate how long it will take to spend a billion dollars.
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Chapter 1: Problem 76
If you spend \(\$ 1000\) each day, estimate how long it will take to spend a billion dollars.
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Use Polya's four-step method in problem solving to solve. A vending machine accepts nickels, dimes, and quarters. Exact change is needed to make a purchase. How many ways can a person with five nickels, three dimes, and two quarters make a 45 -cent purchase from the machine?
Use Polya's four-step method in problem solving to solve Exercises 9-40. a. Which is the better value: a 15.3-ounce box of cereal for \(\$ 3.37\) or a 24 -ounce box of cereal for \(\$ 4.59\) ? b. The supermarket displays the unit price for the 15.3-ounce box in terms of cost per ounce, but displays the unit price for the 24-ounce box in terms of cost per pound. What are the unit prices, to the nearest cent, given by the supermarket? c. Based on your work in parts (a) and (b), does the better value always have the lower displayed unit price? Explain your answer.
Use Polya's four-step method in problem solving to solve. If a test has four true/false questions, in how many ways can there be three answers that are false and one answer that is true?
One more piece of information is given than is necessary for solving the problem. Identify this unnecessary piece of information. Then solve the problem. An architect is designing a house. The scale on the plan is 1 inch \(=6\) feet. If the house is to have a length of 90 feet and a width of 30 feet, how long will the line representing the house's length be on the blueprint?
Exercises 43-46 describe procedures that are to be applied to numbers. In each exercise, a. Repeat the procedure for four numbers of your choice. Write a conjecture that relates the result of the process to the original number selected. b. Use the variable \(n\) to represent the original number and use deductive reasoning to prove the conjecture in part (a). Select a number. Multiply the number by 4 . Add 8 to the product. Divide this sum by 2 . Subtract 4 from the quotient.
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