Overview: 3 questions will be solved this time.Among them
           ☆3 inequalities

[ 1/3Inequality]
    Assignment:Find the solution set of inequality 97.89*0.8+x*0.2 >= 96.5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        97.89 * 0.8 + x * 0.2 >= 96.5         (1)

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    From inequality(1)：
         x ≥ 4547/50

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    The final solution set is :
         x ≥ 4547/50
[ 2/3Inequality]
    Assignment:Find the solution set of inequality 98.16*0.8+x*0.2 >= 96.5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        98.16 * 0.8 + x * 0.2 >= 96.5         (1)

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    From inequality(1)：
         x ≥ 4493/50

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    The final solution set is :
         x ≥ 4493/50
[ 3/3Inequality]
    Assignment:Find the solution set of inequality 98.83*0.8+x*0.2 >= 96.5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        98.83 * 0.8 + x * 0.2 >= 96.5         (1)

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    From inequality(1)：
         x ≥ 4359/50

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    The final solution set is :
         x ≥ 4359/50

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