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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality [(500/25+900/30)y-500-900]/(500+900) ≥25% .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( ( 500 / 25 + 900 / 30 ) * y - 500 - 900 ) / ( 500 + 900 ) ≥25 %         (1)

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    From inequality(1)：
         y ≥ 35

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    The final solution set is :
         y ≥ 35

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