Posted by linear inequalities on Saturday, January 15, 2011 at 3:32am.
1. x+4 < 32
2. 3(y+10)<= 4(y+10)
3. 3x<= 9
4. 2x1>= 8
5. 5x3>=15
>= greater than or equal
<= less than or equal

advance algebra  Reiny, Saturday, January 15, 2011 at 8:51am
Follow the same steps for inequations as you do for equations, EXCEPT ...
when you multiply or divide both sides by a negative, reverse the inequality sign.
e.g. #2
3(y+10)<= 4(y+10)
3y  30 ≤ 4y + 40
3y  4y ≤ 40 + 30
7y ≤ 70
divide by 7
y ≥ =10
for absolute values ...
e.g. #5
5x3 ≥ 15
5x3 ≥ 15 OR 5x+3 ≥ 15
5x ≥ 18 OR 5x ≥ 12
x ≥ 18/5 OR x ≤ 12/5
Do the others the same way, in #3 use AND as the separator.
Answer This Question
Related Questions
 math  State the null hypothesis, Ho, and the alternative hypothesis, Ha, that ...
 math  7. The tennis team is selling key chains as a fundraiser. If its goal is ...
 AlgebraCorrection?  Solve x^2 3x is greater than or equal to 10 Would the ...
 Algebra  Use a graphing calculator or a computer to graph the system of ...
 advance algebra  1. 2(6x+13)7 >= 21 ">=" is greater than or equal <= ...
 College Algebra  How do you solve this to graph the system of inequalities? x+...
 Math  Hi everyone, my name is Emerson. I was wondering if anybody could help me...
 Intermediate Algebra  Find the maximum value of the objective function and the ...
 algebra  use the inequality 4t8 is less than or equal to 12 a. t is greater ...
 Math  Which is equivalent to the inequality shown below? z/2 (less than equal ...
More Related Questions