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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 600z-32000-68000 >= (32000+68000)*0.2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        600 * z - 32000 - 68000 >= ( 32000 + 68000 ) * 0.2         (1)

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    From inequality(1)：
         z ≥ 200

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    The final solution set is :
         z ≥ 200

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