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Tutors Answer Your Questions about Inequalities (FREE)
Question 93860: Good Evening Tutors,
I was wondering if you could show me how to graph this inequality.
y >= 3x
I got 1 > 3 (false) so I shaded below the line not including the 1 but I am not sure I have this correct. Any help would be greatly accepted.
Thank you.
Click here to see answer by stanbon(26256)   |
Question 94928: Hello out there,I really need some help with some problems,the first one is,Solve the inequality:10+1.2h>0.4.The next one is,Solve the inequality:b/12-2>4.The next one is,Solve the inequality:8-3x>35.And the last one is,Solve the inequality:18<6y-12.Thanks to whoever can help.
Click here to see answer by stanbon(26256) |
Question 94925This question is from textbook Algebra
: Word Problems with Inequalities:
Betty earns a salary of $14,000 per year plus and 8% commission on all her sales. How much must her sales be if her annual income is to be no less than $15,600?
This question is from textbook Algebra
Click here to see answer by edjones(3291)  |
Question 95158This question is from textbook PRE-ALGEBRA
: There are 88 keys on a new piano. If there are 12 pianos in a room of broken pianos, some of which may have missing keys, how many piano keys could be on the pianos? Write and solve an inequality to answer the question.
The answer my daughter had was k<_88, but she had it wrong. What did she do wrong?This question is from textbook PRE-ALGEBRA
Click here to see answer by stanbon(26256) |
Question 95133: I am very sorry this is not from a text book. I am working on compound inequalities: 3y+5>_2y+1>y-1
(that's the best I could come up with for 'greater than or equal to')
I subtracted the 1 in the middle from both sides and got
3y+4>_2y>y-2
Then I subtracted the y on the right side from both sides and got
2y+4>_y>-2
And now I am stuck, it is my understanding that the variable must be isolated in between the inequality signs, but I don't know how to do that from here. Please help me.
Click here to see answer by stanbon(26256) |
Question 95568: Hello out there,I need some help with some tough problems,the first one is,Solve the inequality:18<6y-12(for that,I got two different answers,y>150and y>1).The next one is,Solve the inequality:2b-12>13.The third one is,Solve the inequality:3h+6<33.And the last one is,Solve the inequality:-1/4v>12.Thanks for whoever can help.
Click here to see answer by ankor@dixie-net.com(6691)  |
Question 95696: Hello out there,I need some help with some problems,the first one is,Solve the inequality:18>x/-3.The next one is,Solve the inequality:d/-2<-4.The third one is,Solve the inequality:-6h>36.And the last one is,Solve the inequality:10
Click here to see answer by Edwin McCravy(2920) |
Question 95746: I have a problem with my homework. the answer in the book is not matching what I have come up with. I have even had my 9th grader work the problem and she comes up with the same answer. I know that I have done the work right as this is the only problem I have trouble with and all of the other problems have the same answer. I will give you the problem and then show what I did. could you just check my work.
3/5x-2<3/10-x
3/5x-2<3/10-x
+x +x
+2 +2
3/5x+x<3/10+2
3/5x+x<23/10
then divided 3/5x by 3/5
and divided 23/10 by 3/5
flipped the 3/5 and multiplied the two fractions on the right like this...
x+x<23/10*5/3
2x<115/30
then divided the 2x by 2
and the 115/30 by 2
flipped the 2/1 to 1/2 and multiplied 1/2 with 115/30 like this...
x<115/30*1/2
x<115/60
which simplifies to...
x<23/12.
(-infinity,23/12)
The problem is the answer in the back of my book is (-infinity,23/16).
I have checked the problem in the book and the answer many times. Are my calculations correct?
Thank you...
Click here to see answer by bucky(1732) |
Question 96082: There are 88 keys on a new piano. If there are 12 pianos in a room of broken
pianos, some of which may have missing keys, how many piano keys could be on the pianos? Write and solve an inequality to answer the question.
Click here to see answer by checkley71(8405) |
Question 96185: This is driving me insane
The sum of the lengths of any two sides of a triagle must be greater than the third side. If a triagle has one side that is 19 inches and a second side that is 2 inches less than twice the third side, what are the possible lengths for the second and third sides.
Click here to see answer by stanbon(26256) |
Question 96185: This is driving me insane
The sum of the lengths of any two sides of a triagle must be greater than the third side. If a triagle has one side that is 19 inches and a second side that is 2 inches less than twice the third side, what are the possible lengths for the second and third sides.
Click here to see answer by checkley71(8405) |
Question 96444: I been able to solve and graph the problems involving inequalities, but I do not understand this word problem. I would be very grateful if you could help me.Thank you so much the problem is below. I think if I knew the solution I could figure it out.
Sam must have an average of 70 or more in his summer course to
obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality
representing the score that Sam must get on the last test to get a C grade.
Click here to see answer by edjones(3291) |
Question 96324: Hello, I am needing some help with this problem:
(x+2)(x-3)>(x-1)(x+1)
factored out:
x^2+2x-3x-6>x^2-1
I tried using the quadratic formula with the left side but wasn't coming up with the right answer. Any help will be appreicated.
Click here to see answer by scott8148(3382)  |
Question 96483: Write the verbal sentence as an inequality. Then solve the ineqaulity
You have two summer jobs. In the first job,you work 25 hours per week and earn $9 per hour. In the second job, you can work as many hours as you want per week,at least how many hours per week must you work at the second job?
Can someone,.,anyone please help me:)
Click here to see answer by stanbon(26256) |
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