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Posted by on Thursday, December 19, 2013 at 11:56am.

1. x + 8 <-28

a) x <-36
b) x <-20
c) x <20
d) x <36

2. p/8 > -5

a) p > 40
b) p > 3
c) p > -13
d) p > -40

3. -8x > -64

a) x < 8
b) x > 8
c) x <-72
d) x > 72

  • math - , Thursday, December 19, 2013 at 12:07pm

    Treat these as if they were equations but keeping the in-equality sign instead of the equal sign,
    EXCEPT
    when you multiply or divide the in-equation by a negative, you must reverse the inequality sign.

    e.g.
    last one:

    -8x > -64
    I would have to divide by -8 to get +x , so
    x < 8

    1st one:
    x + 8 < -28
    x < -28 - 8 , I did not multiply/divide so no big deal
    x < -36

    you do #2, let me know what you get

  • math - , Thursday, December 19, 2013 at 12:15pm

    d ?

  • math - , Thursday, December 19, 2013 at 12:18pm

    yes, but be more confident in your choice

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