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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (2×（18+t）+0.8×10.5)×(9.1+250.45)/(29.5+t) ≥1.6×10.5×10 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 2 × ( 18 + t ) + 0.8 × 10.5 ) × ( 9.1 + 250.45 ) / ( 29.5 + t ) ≥1.6 × 10.5 × 10         (1)
        From the definition field of divisor
         29.5 + x ≠ 0        (2 )

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    From inequality(1)：
         t ≤ -29.5 或  t ≥ -18.706978
    From inequality(2)：
         t < -59/2 或  t ＞ -59/2

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    From inequalities (1) and (2)
         t < -59/2 或  t ≥ -18.706978    (3)

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    The final solution set is :
         t < -59/2 或  t ≥ -18.706978

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