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darkbeautystar

  • one year ago

I need help!!! Which statements are true? Choose all answers that are correct. A. 7 + (–10) < –13 + 17 B. 22 + (–13) > 18 + (–7) C. –18 + 24 = –23 + 17 D. –11 + (–8) > 4 + (–26) Please Help quick

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  1. darkbeautystar
    • one year ago
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    Please help

  2. anonymous
    • one year ago
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    Hi; I can help you with this ... Happy Monday to you.

  3. anonymous
    • one year ago
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    Let's look at them one at a time. On the first one: Can you tell me what 7 + (-10) is? Can you tell me what -13 + 17 is?

  4. darkbeautystar
    • one year ago
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    You too, are you good with math

  5. anonymous
    • one year ago
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    Yep, I'm good with math (I've taught for over 30 years and have a doctorate in math).

  6. darkbeautystar
    • one year ago
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    1. -3 2. 4

  7. darkbeautystar
    • one year ago
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    Cool

  8. anonymous
    • one year ago
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    Okay, so on (1), remember that "<" means " to the left of on a number line ". If you mark your -3 and your 4 on a number line, does -3 lie to the left of 4 ? If so, the first one is true. What do you think?

  9. darkbeautystar
    • one year ago
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    I think that sounds right

  10. anonymous
    • one year ago
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    So what's your answer .... do you think -3 lies to the left of 4 on a number line? (Yes or no)

  11. darkbeautystar
    • one year ago
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    Yes

  12. anonymous
    • one year ago
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    Yep! So the first one is true. Good. Now, tell me the values of the left-side and right-side on the second one.

  13. darkbeautystar
    • one year ago
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    1. 9 2. 11

  14. anonymous
    • one year ago
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    Perfect. So, the question here is: Is 9 > 11 ">" means "to the right of" on a number line. Plots 9 and 11. Does 9 lie to the RIGHT of 11 on a # line? (Yes or No)

  15. darkbeautystar
    • one year ago
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    No

  16. anonymous
    • one year ago
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    Correct. So, the second one is false. For the third one, remember the "=" means "live at the same place on a number line". Try that one, and tell me what you think the answer is.

  17. darkbeautystar
    • one year ago
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    Incorrect

  18. anonymous
    • one year ago
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    Yep, it's false. 6 and -6 definitely don't live at the same place on a # line. The last one is the trickiest of all these. Simplify the left side; simplify the right, and remember what ">" means ... you try it.

  19. anonymous
    • one year ago
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    By the way, there are memory devices for remembering what ">" and "<" mean here: http://www.onemathematicalcat.org/algebra_book/online_problems/big_small.htm (The memory devices here work with both positive and negative numbers, so they're more versatile than the "alligator" memory devices).

  20. darkbeautystar
    • one year ago
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    Correct Because -19 is higher than -22

  21. anonymous
    • one year ago
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    Awesome! Yep, -19 lies to the right of -22! It's true. Good job!

  22. darkbeautystar
    • one year ago
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    Thanks Goodbye

  23. anonymous
    • one year ago
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    If you want lots more practice like this, you can go here: http://www.onemathematicalcat.org/algebra_book/online_problems/ineqTF.htm Have a great day... bye...

  24. darkbeautystar
    • one year ago
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    I don't know how to metal or I would

  25. anonymous
    • one year ago
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    You already did! You click the little medal just to the left of the number on the right side of the screen.

  26. darkbeautystar
    • one year ago
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    Oh ok

  27. darkbeautystar
    • one year ago
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    Goodbe

  28. darkbeautystar
    • one year ago
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    bye

  29. anonymous
    • one year ago
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    bye

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