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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 80x+60(20-x) ≤1440 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        80 * x + 60 * ( 20 - x ) ≤1440         (1)

---

    From inequality(1)：
         x ≤ 12

---

    The final solution set is :
         x ≤ 12

Your problem has not been solved here? Please take a look at the  hot problems ！