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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.8*350*a+0.85*400*(50-a) <= 14900 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.8 * 350 * a + 0.85 * 400 * ( 50 - a ) <= 14900         (1)

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    From inequality(1)：
         a ≥ 35

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    The final solution set is :
         a ≥ 35

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