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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (160x/80)/(160x/80+0.5) >0.5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 160 * x / 80 ) / ( 160 * x / 80 + 0.5 ) >0.5         (1)
        From the definition field of divisor
         160 * x / 80 + 0.5 ≠ 0        (2 )

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    From inequality(1)：
         x < -0.25 或  x ＞ 1/4
    From inequality(2)：
         x < -1/4 或  x ＞ -1/4

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    From inequalities (1) and (2)
         x < -0.25 或  x ＞ 1/4    (3)

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    The final solution set is :
         x < -0.25 或  x ＞ 1/4

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