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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (500-w)*388500 >(750-w)*280500 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 500 - w ) * 388500 > ( 750 - w ) * 280500         (1)

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    From inequality(1)：
         w < -149.305556

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    The final solution set is :
         w < -149.305556

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