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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 30×(1-10%)(50-x)+40x ≤1480 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        30 × ( 1 - 10 % ) * ( 50 - x ) + 40 * x ≤1480         (1)

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    From inequality(1)：
         x ≤ 10

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    The final solution set is :
         x ≤ 10

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