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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (430-y)*(667.79-600)-(430-427.293)*(862-667.79) >= 0.013*(667.79-600)*(862-667.79) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 430 - y ) * ( 667.79 - 600 ) - ( 430 - 427.293 ) * ( 862 - 667.79 ) >= 0.013 * ( 667.79 - 600 ) * ( 862 - 667.79 )         (1)

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    From inequality(1)：
         y ≤ 419.720048

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    The final solution set is :
         y ≤ 419.720048

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