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24 February, 14:23

If x an integer and 2x + 8 9, how many possible values of x are there?

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Answers (2)
  1. 24 February, 17:48
    0
    4, 5 and 6.

    Step-by-step explanation:

    2x + 8 < 22

    2x < 14

    x < 7.

    3x > 9

    x > 3.

    So the possible values if x is an integer are 4, 5 and 6.
  2. 24 February, 18:09
    0
    3 values

    Step-by-step explanation:

    2x + 8 9

    Solve the two inequalities separately and then put them back together

    2x + 8 <22

    Subtract 8 from each side

    2x + 8-8 <22 - 8

    2x < 14

    Divide by 2

    2x/2 < 14/2

    x < 7

    Then solve the second inequality

    3x>9

    Divide by 3

    3x/3>9/3

    x >3

    Putting them back together

    x>3 and x < 7

    Since it has to be an integer

    4,5,6 are possible choices

    3 values
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