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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （2*（t-3.3)+0.8*9)*(50.16+8.6*t)/(7.2+t) ≥144 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 2 * ( t - 3.3 ) + 0.8 * 9 ) * ( 50.16 + 8.6 * t ) / ( 7.2 + t ) ≥144         (1)
        From the definition field of divisor
         7.2 + x ≠ 0        (2 )

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    From inequality(1)：
         -7.2 ≤ t ≤ -6.612191 或  t ≥ 8.851726
    From inequality(2)：
         t < -36/5 或  t ＞ -36/5

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    From inequalities (1) and (2)
         -36/5 < t ≤ -6.612191 或  t ≥ 8.851726    (3)

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    The final solution set is :
         -36/5 < t ≤ -6.612191 或  t ≥ 8.851726

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