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ihavemathquestions

  • one year ago

Solve the compound inequality. Graph the solution. –8 ≤ 2x – 4 < 2

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  1. ihavemathquestions
    • one year ago
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  2. Kitt020912
    • one year ago
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    I would leave the -8 and add the 4 from the 2x-4 to the <2 What would you get?

  3. Kitt020912
    • one year ago
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    That's only the first step(:

  4. ihavemathquestions
    • one year ago
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    2x < 2

  5. Kitt020912
    • one year ago
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    Not quite. |dw:1361036597370:dw| Then what would you do?

  6. ihavemathquestions
    • one year ago
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    2x <14

  7. ihavemathquestions
    • one year ago
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    -2 ≤ x 3

  8. Kitt020912
    • one year ago
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    It's a double inequality so it's going to look like\[[ ] \le x <[ ]\]

  9. completeidiot
    • one year ago
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    |dw:1361036836187:dw|

  10. Kitt020912
    • one year ago
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    so you need to get x by itself, to do that you have to divide everything by 2. |dw:1361036855393:dw| Then what would you get?

  11. completeidiot
    • one year ago
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    kitt, you made a mistake, you cant just add 4 to the right side and middle you must do it to the entire inequality including the left side this would of course change the answer you gave

  12. completeidiot
    • one year ago
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    @ihavemathquestions kitt's process if fine except for the 1st step just follow it can you'll get the answer

  13. Kitt020912
    • one year ago
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    |dw:1361037094501:dw|

  14. Kitt020912
    • one year ago
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    so if you dived that out you should get the right answer(: the inequality signs don't change because you aren't multiplying or dividing by a negative number.

  15. Kitt020912
    • one year ago
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    @completeidiot thank you for catching my mistake.

  16. Kitt020912
    • one year ago
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    (:

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