darkbeautystar
  • darkbeautystar
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
darkbeautystar
  • darkbeautystar
Please help
anonymous
  • anonymous
Hi; I can help you with this ... Happy Monday to you.
anonymous
  • anonymous
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?

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darkbeautystar
  • darkbeautystar
You too, are you good with math
anonymous
  • anonymous
Yep, I'm good with math (I've taught for over 30 years and have a doctorate in math).
darkbeautystar
  • darkbeautystar
1. -3 2. 4
darkbeautystar
  • darkbeautystar
Cool
anonymous
  • anonymous
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?
darkbeautystar
  • darkbeautystar
I think that sounds right
anonymous
  • anonymous
So what's your answer .... do you think -3 lies to the left of 4 on a number line? (Yes or no)
darkbeautystar
  • darkbeautystar
Yes
anonymous
  • anonymous
Yep! So the first one is true. Good. Now, tell me the values of the left-side and right-side on the second one.
darkbeautystar
  • darkbeautystar
1. 9 2. 11
anonymous
  • anonymous
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)
darkbeautystar
  • darkbeautystar
No
anonymous
  • anonymous
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.
darkbeautystar
  • darkbeautystar
Incorrect
anonymous
  • anonymous
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.
anonymous
  • anonymous
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).
darkbeautystar
  • darkbeautystar
Correct Because -19 is higher than -22
anonymous
  • anonymous
Awesome! Yep, -19 lies to the right of -22! It's true. Good job!
darkbeautystar
  • darkbeautystar
Thanks Goodbye
anonymous
  • anonymous
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...
darkbeautystar
  • darkbeautystar
I don't know how to metal or I would
anonymous
  • anonymous
You already did! You click the little medal just to the left of the number on the right side of the screen.
darkbeautystar
  • darkbeautystar
Oh ok
darkbeautystar
  • darkbeautystar
Goodbe
darkbeautystar
  • darkbeautystar
bye
anonymous
  • anonymous
bye

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