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15 December, 11:06

28 32 21 22

The mean is 24.4 what is the 5th number

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Answers (2)
  1. 15 December, 12:38
    0
    Set up an equation with x as the variable for the missing number

    (28+32+21+22+x) / 5 = 24.4

    multiply both sides by 5

    28+32+21+22+x = 5 (24.4)

    simplify (add and multiply)

    103+x = 122

    subtract 103 from both sides

    x = 122-103

    simplify

    x = 19
  2. 15 December, 14:52
    0
    The awnser has to be 26?
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