B Apply

18. Think About a Plan If it is the night of your weekly basketball game, your family eats at your favorite restaurant. When your family eats at your favorite restaurant, you always get chicken fingers. If it is Tuesday, then it is the night of your weekly basketball game. How much do you pay for chicken fingers after your game? Use the specials board below to decide. Explain your reasoning.
    • How can you reorder and rewrite the sentences to help you?
    • How can you use the Law of Syllogism to answer the question?

    

Beverages For Exercises 19–24, assume that the following statements are true.

1. If Maria is drinking juice, then it is breakfast time.
2. If it is lunchtime, then Kira is drinking milk and nothing else.
3. If it is mealtime, then Curtis is drinking water and nothing else.
4. If it is breakfast time, then Julio is drinking juice and nothing else.
5. Maria is drinking juice.

Use only the information given above. For each statement, write must be true, may be true, or is not true. Explain your reasoning.

19. Julio is drinking juice.
20. Curtis is drinking water.
21. Kira is drinking milk.
22. Curtis is drinking juice.
23. Maria is drinking water.
24. Julio is drinking milk.
25. Physics Quarks are subatomic particles identified by electric charge and rest energy. The table shows how to categorize quarks by their flavors. Show how the Law of Detachment and the table are used to identify the flavor of a quark with a charge of − 1 3 e negative , 1 third , e  and rest energy 540 MeV.

    Rest Energy and Charge of Quarks

    Rest Energy (MeV)	360	360	1500	540	173,000	5000
    Electric Charge (e)	+ 2 3 plus , 2 thirds	− 1 3 negative , 1 third	+ 2 3 plus , 2 thirds	− 1 3 negative , 1 third	+ 2 3 plus , 2 thirds	− 1 3 negative , 1 third
    Flavor	Up	Down	Charmed	Strange	Top	Bottom

Write the first statement as a conditional. If possible, use the Law of Detachment to make a conclusion. If it is not possible to make a conclusion, tell why.

26. All national parks are interesting.

    Mammoth Cave is a national park.

27. All squares are rectangles.

    ABCD is a square.

28. The temperature is always above 32 ° F 32 degrees cap f  in Key West, Florida.

    The temperature is 62 ° F . 62 degrees cap f , .

29. Every high school student likes art.

    Ling likes art.

30. Writing Give an example of a rule used in your school that could be written as a conditional. Explain how the Law of Detachment is used in applying that rule.

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