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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 300/500（15-X） ≤0.075 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        300 / 500 * ( 15 - X ) ≤0.075         (1)

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    From inequality(1)：
         X ≥ 119/8

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    The final solution set is :
         X ≥ 119/8

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