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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 10000/x+10000/(x+4.8)*0+10000/(x+9.6)*2+10000/(x+14.4)*7 <= 550 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        10000 / x + 10000 / ( x + 4.8 ) * 0 + 10000 / ( x + 9.6 ) * 2 + 10000 / ( x + 14.4 ) * 7 <= 550         (1)
        From the definition field of divisor
        x ≠ 0        (2 )
        From the definition field of divisor
         x + 4.8 ≠ 0        (3 )
        From the definition field of divisor
         x + 9.6 ≠ 0        (4 )
        From the definition field of divisor
         x + 14.4 ≠ 0        (5 )

---

    From inequality(1)：
         x ≤ -14.4 或  -10.735148 ≤ x ≤ -9.6 或  -1.377812 ≤ x ≤ 0 或  x ≥ 169.931142
    From inequality(2)：
         x < 0 或  x ＞ 0
    From inequality(3)：
         x < -24/5 或  x ＞ -24/5
    From inequality(4)：
         x < -48/5 或  x ＞ -48/5
    From inequality(5)：
         x < -72/5 或  x ＞ -72/5

---

    From inequalities (1) and (2)
         x ≤ -14.4 或  -10.735148 ≤ x ≤ -9.6 或  -1.377812 ≤ x < 0 或  x ≥ 169.931142    (6)
    From inequalities (3) and (6)
         x ≤ -14.4 或  -10.735148 ≤ x ≤ -9.6 或  -1.377812 ≤ x < 0 或  x ≥ 169.931142    (7)
    From inequalities (4) and (7)
         x ≤ -14.4 或  -10.735148 ≤ x < -48/5 或  -1.377812 ≤ x < 0 或  x ≥ 169.931142    (8)
    From inequalities (5) and (8)
         x < -72/5 或  -10.735148 ≤ x < -48/5 或  -1.377812 ≤ x < 0 或  x ≥ 169.931142    (9)

---

    The final solution set is :
         x < -72/5 或  -10.735148 ≤ x < -48/5 或  -1.377812 ≤ x < 0 或  x ≥ 169.931142

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