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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 210Y+250(30-Y) <5700 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        210 * Y + 250 * ( 30 - Y ) <5700         (1)

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    From inequality(1)：
         Y ＞ 45

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    The final solution set is :
         Y ＞ 45

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