Questions on Algebra: Inequalities, trichotomy answered by real tutors!

Tutors Answer Your Questions about Inequalities (FREE)

Question 98512: Hello out there,I really need some help with some problems,the first one is Solve the inequality:[2x]<8.The next one is,Solve the inequality:[p+2]<6.The third is,Solve the inequality:Solve the inequality:[z+3]>2.And the last one is,Which of the points satisfy y-3<2x? (0,0)or(1,5)or(-2,0).Thanks for anyone that can help.
Click here to see answer by mathslover(135)

Question 98552: Please help me solve this inequality

x2 - 12x + 35 > 0

Click here to see answer by checkley71(8403)

Question 98527: solve the inequality
x2 - 12x + 35 > 0

Click here to see answer by malakumar_kos@yahoo.com(315)

Question 98667: hi, I was trying to do this problem, but i am stuck. the problem is as follows: "the usual toll for the birmingham tunnel is 50 cents. if you purchase a special sticker for 5.50. the toll is only35 cents. at least how many trips through the tunnel are neeeded before the sticker costs less than paying for each trip separately?
i said $5.50 + .35 t with a sticker. t represens trips. then i said .50 without a sticker. i combined them to get 5.50 + .35t _>_(is greater than or equal to sumbol) .50t then i couldn't figure out anything else and im not sure if that work is correct.
any help is definietly appreciated. Thanks so much in advance = )
Click here to see answer by 303795(595)

Question 98666: i tried this problem, but i am stuck. the problem is as follows:
the length of a rectangle is 5cm more than twice its width. find the largest possible width if the perimeter is at most 64cm.
Thank you so much for your help. i really appreciate it = )
Click here to see answer by checkley71(8403)

Question 98714: The markup over dealer's cost of a new car ranges from 12% to 18%. If the sticker price is $8800, over what range will the dealer's cost vary?
Click here to see answer by checkley71(8403)

Question 98936: Can someone please help me. I got this inequality problem wrong on my homework. Thanks!
(1/3 < x/2)+(1/3 < 5/6)
Click here to see answer by edjones(7569)

Question 99289: How do i figure out 2(x+4)-5(x-3)=18
Click here to see answer by stanbon(57409)

Question 99301: I need help on this promlem beacuse i typed in this problem but i put an 18 at the end instead of a 32
so how do i figure 2(X+4)-5(x-3)=32
Click here to see answer by edjones(7569)

Question 99298: How do i figure out 2(x+4)-5(x-3)=32
Click here to see answer by lil bit(2)

Question 99293: how do i figure out 2(x+4)-5(x-3)=32
Click here to see answer by bucky(2189)

Question 99754: This should be easy, but no combination seems to come out "correct" according to my submission. It's supposed to be solved and put in interval format.
7x+12<=6
So I tried
subtract 12 from bothsides 7x<=-6
then divide by 7 for x<=-6/7
So interval format should be (inf, -6/7]
But I'm wrong. Please help! Thanks!
Click here to see answer by jim_thompson5910(28598)

Question 99757: 8(.09-.7x)+1.259<=.091+18x
Solve and put in interval format
Please help! I'm missing something!
I tried
.72-5.6x+1.259<=.091+18x
-5.6x+1.979<=.091+18x
-5.6x+1.888<=18x
1.888<=23.6x
.08<=x
x>=.08
[.08, inf)

Click here to see answer by jim_thompson5910(28598)

Question 99770:
(-inf., -.625] is NOT correct. Any ideas?
Thanks in advance!
Click here to see answer by edjones(7569)

Question 99777: Sarah hands in her 4th exam. The scores on her first three exams were 75,95, and 97. What does she need to earn on her 4th exam to average at least a 90 on the 4 exams? Construct an inequality with the variable x representing her 4th exam score, then solve the inequality for x.
Click here to see answer by Adam(64)

Question 100034: Solve the following inequality for t: ( all are fractions )
t/3 - t/2 > 3/4
Click here to see answer by jim_thompson5910(28598)

Question 100033: Solve the following compound inequality. Express your answer in interval notation. then describe what the one-dimentional graph would look like for your solution.
2 < 2x - 5 < 7
Click here to see answer by jim_thompson5910(28598)

Question 100148: Can someone please help me to simplify this without negative exponents?
(xy^5 / x^-4y^2)^-2
Click here to see answer by stanbon(57409)

Question 100279: SOLVE BY USING SQUARE ROOT PROPERTY
M^2-25=0
Click here to see answer by edjones(7569)

Question 100402: Please help me solve this problem by identifing the inequality represented by the sentence: When a number is divided by 3, and the quotient is increased by 5, the result is more than 2.
Click here to see answer by stanbon(57409)

Question 100413: When James's great-great grandfather turned 80, he had lived through half the history of the united states. in what year was his 80th birthday?
Click here to see answer by edjones(7569)

Question 100436: -6>4y
8-u>4
5w>-6w+11
6y-7<-2y+13
|2h+1|<5
-10<4q<12
5(-2+b)<3b+2
10k<75and4-k<0
0.5(x+3)-2.1>-1
Click here to see answer by jim_thompson5910(28598)

Question 100427: Juanita's spelling average was between 80 and 90. if she scored eight points more on the second test than on the first test and 5 points less on the third test than on the first test. what scores are possible for the first test
Click here to see answer by joyofmath(189)

Question 100661: 4=4(x-5)+4-3x

Click here to see answer by checkley71(8403)

Question 100674: I have two word problems that I really need help on.
1)Two cars leave Denver at the same time and travel in opposite directions. One car travels 15mi/h faster than the other car. The cars are 460mi apart in 4 hours. How fast is each car traveling?
2)A club decides to sell T-shirts for $12 as a fund-raiser. It costs $20 plus $8 per T-shirt to make the T-shirts. How many T-shirts does the club need to make and sell in order to earn $100?
I was wonder how can we contact the tutors to thank them for helping us?
Click here to see answer by oberobic(2304)

Question 100709: Will someone help me out again...I am completely stressed and I can't think correctly. If I have 5x-1/2(3x+8)lessthanorequalto-4+3x what do I do?
I am totaly lost and I would appreciate any help I could get.
Thanks bunches!
Click here to see answer by checkley71(8403)

Question 100683: 1<= |x - 2| <= 3
<= means less than or equal to

Click here to see answer by scott8148(6628)

Question 100792: 2x2 + 3xy -4y2 when x=2 and y=4 i would like to know how they got (-80)
if any one can break it down this is from a sample test for college online
Click here to see answer by bucky(2189)

Question 100845: Solve the inequality
/3x -9/ < 12 (//represents absolute value)
Express the answer in terms of intervals
Click here to see answer by diamonddarby2(3)

Question 99808: -y+4y=-y
Click here to see answer by edjones(7569)

Question 100846: A piece of wire 24 in long is bent into the shape of rectanlge having width X and Length y. Express the area A of the rectangle as a function of X.
Click here to see answer by scott8148(6628)

Question 101021: I'm very confused with this problem. The problem is
-2/3q less than or equals -4
Please help.
Thanks!
Click here to see answer by edjones(7569)

Question 101079: I am having trouble answering this question, can you help? When solving an inequality, when is it necessary to change the direction of the inequality symbol? Can you give a real life example of this? Thank You
Click here to see answer by edjones(7569)

Question 101071: How do I graph the inequalties of y is greater than 3?
Click here to see answer by bp1129(1)

Question 101071: How do I graph the inequalties of y is greater than 3?
Click here to see answer by jim_thompson5910(28598)

Question 101178: 2.When solving an inequality, when is it necessary to change the direction of the inequality symbol? Can you give a real life example of this?
Hello i am having trouble solving this question, can you help? Thanks!!
Click here to see answer by doukungfoo(195)

Question 101206: Describe at least two real-life examples where inequalities are used either at home or on the job. Try looking in the textbook or online to see what ideas you get. Then look around you at home and at work and see what strikes you as being similar in your own life. What examples do you see? Describe at least two of them in detail.
Click here to see answer by Nate(3500)

Question 100919: In order to full a water tank three pipes producing 12L/min, 16L/min, 20L/min of water are turned on at 30 min intervals. If they are turned on in the order given, how long after the first pipe is turned on will a 1200 L tank be filled?
Click here to see answer by scott8148(6628)

Question 100989: Please explain step by step:
1/x=2
Click here to see answer by ankor@dixie-net.com(15661)

Question 101118: It takes Terry 2 hours longer to do a certain job than it takes Tom. They worked together for 3 hours; then Tom left and Terry finished the job in 1 hour. How long would it take each of them to do the job alone?
Click here to see answer by scott8148(6628)

Question 101291: I'm very confused with this problem - please help. Please show in detail how you arrive at the answer. I think somewhere along the way my work is missing a step. The problem is
2/3(p+3) > 5/6 (p-4)
Thank you
Click here to see answer by ptaylor(2048)

Question 100231: solve the following inequality for x. Then, describe the one-dimentional graph that you would draw o represent the solution. (Indicate where the line would begin, which way it points, etc.) Show all steps.
-2(x+6)>x+4
Click here to see answer by ckaeser(6)

Question 100921: Max runs the first km of her training session at 8km/h. At least how many kilometers must she run at 15 km/h in order to average 12km/h for the whole session?
Click here to see answer by ankor@dixie-net.com(15661)

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