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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.3*150+0.4*[7*15+p*3*15+(1-p)*3*(-10)-30]+0.3*[5*15+2*(-10)+p*3*15+(1-p)*3*(-10)-30] <90.75 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.3 * 150 + 0.4 * ( 7 * 15 + p * 3 * 15 + ( 1 - p ) * 3 * ( -10 ) - 30 ) + 0.3 * ( 5 * 15 + 2 * ( -10 ) + p * 3 * 15 + ( 1 - p ) * 3 * ( -10 ) - 30 ) <90.75         (1)

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    From inequality(1)：
         p < -0.163889

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    The final solution set is :
         p < -0.163889

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