Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality X(30-0.5x) <200 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         X * ( 30 - 0.5 * X ) <200         (1)

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    From inequality(1)：
         X < 7.63932 或  X ＞ 52.36068

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    The final solution set is :
         X < 7.63932 或  X ＞ 52.36068

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