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Some of the questions in this course may be answered by recording an audio file. If you chose to record the answer, click on the Add Recording button and follow the on-screen instructions closely. Once you have completed and attached the recording, enter the word “COMPLETE” in the text box. (Note: If your computer does not have a built-in microphone, a microphone or microphone/headset combination is needed to record audio.)
Recording Audio Alert: The latest version of Java must be installed on your computer in order to record audio. If you are having difficulty, please go to: www.java.com and click on " Free Java Download." For Windows users, you will then click on "Agree & Start Free Download." For other operating systems, click on the "All Java Downloads" link to find your specific instructions. You may need to restart (close and re-open) your browser to enable the Java installation in your browser.
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| 7) Janie bought 14 pairs of socks at $2.00 each. She paid for the socks with two twenty-dollar bills. Calculate the money Janie received back after making the purchase? (Note: Janie’s state does not apply sales tax to clothing.) (a) State a math expression that represents this problem. (b) What is the amount of change? |
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| 8) Darren works 40 hours a week at a construction company and makes $24.00 an hour. Calculate Darren’s take-home pay if $275 is withheld for taxes and insurance? (a) State a math expression that represents this problem. (b) What is Darren’s take-home pay? |
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| For the next four problems, determine a math expression to represent the given phrase. State the letter of the correct answer. |
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| Properties of Real Numbers |
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| For the next five problems, review the explanation of the properties of real numbers in the content link to “Properties of Real Numbers”, and then determine which property fits each of the given descriptions. |
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| 13) Which property fits this description? When adding several whole numbers, the result is the same no matter which two numbers are added first. In other words, (2 + 7) + 9 is the same as 2 + (7 + 9). |
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| 14) Which property fits this description? When adding two whole numbers, the result will be a whole number also. |
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| 15) Which property fits this description? When multiplying two whole numbers, the result is the same regardless of the order the numbers are multiplied. In other words, 7(8) = 8(7). |
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| 16) Which property fits this description? The product of any whole number and one is that number. In other words, 19(1) = 19. |
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| 17) The given figure is a model of the distributive property. What is the numerical representation of the model? |
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| 23) Define an arithmetic sequence. |
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| 25) What are the next three terms in the sequence in the previous problem? |
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| 26) What are the next three terms in the given sequence? |
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| 27) Which sequence is arithmetic? |
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| 30) The Fibonacci sequence is a special sequence that occurs in both natural and man-made creations. It is not an arithmetic sequence; but, addition may used to determine the next term. (a) What are the next three terms? (b) Describe the pattern that connects the terms in the Fibonacci sequence. |
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| For the next two problems, complete a matrix logic table to help solve the problems. |
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| 31) Kristen, Amy, and Larissa have chosen careers as a mechanical engineer, a teacher, and a physician’s assistant. Amy does not have patience with children. Kristen likes to analyze and design equipment. Which career has each person probably chosen? |
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| 32) Four friends like four different kinds of music. Jay does not like heavy metal. Mike does not like jazz. Cory does not like jazz or rap. Luke does not like rap, jazz, or rock. Each boy likes which kind of music? |
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| 33) Five friends live in apartments on the same side of the street. The apartment numbers are #510 through #514. Darrel’s apartment number is #512. Laura’s apartment is right before Ray’s. Darrel’s closest neighbors are Jim and Laura. Dianne’s apartment number is not #512 through #514. What is each person’s apartment number? (Hint: Draw a matrix table to solve the problem.) |
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| 34) If you were directed by your school to complete Offline Activities for this course, please enter the information on the Log Entry form. |
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