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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2x÷6x×100% ≥20% .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 * x ÷ 6 * x × 100 % ≥20 %         (1)

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    From inequality(1)：
         x ≤ -√3/√5 或  x ≥ √3/√5

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    The final solution set is :
         x ≤ -√3/√5 或  x ≥ √3/√5

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