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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 100x+400*5+65(400-x)-400*75 ≥9600 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        100 * x + 400 * 5 + 65 * ( 400 - x ) - 400 * 75 ≥9600         (1)

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    From inequality(1)：
         x ≥ 2320/7

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    The final solution set is :
         x ≥ 2320/7

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