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    Question

    If 100.9 = 12 and ( 0.1)x = 120,

    then what is the value of x.
    A -1.4 Correct Answer Incorrect Answer
    B -1.9 Correct Answer Incorrect Answer
    C -1.7 Correct Answer Incorrect Answer
    D -1.8 Correct Answer Incorrect Answer

    Solution

    0.1x = 120 or = 120 or 10-x = 12  10 or 10-x = 100.9  10 = 101.9 So -x = 1.9 or x = -1.9

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