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

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Algebra: Inequalities, trichotomy

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Question 16245: 3x-2=7
Click here to see answer by pwac(251)

Question 16331: Write an inequality that has no solution.
Click here to see answer by rapaljer(3610)

Question 16386: 2x+5=x
Click here to see answer by pwac(251)

Question 16419: 8u=3u+35
Click here to see answer by tjnw79(57)

Question 16416: Hello, I am in Algebra I and I don't understand it very well. Maybe you can help me. My question is : 8(x-y)+5(3x-3y)
Click here to see answer by rahman(247)

Question 16524: how do you solve this problem?
5-3(x+1)=5
Click here to see answer by rahman(247)

Question 16585: ax=c-x
Click here to see answer by rapaljer(3610)

Question 16510: Xa (insert operator here) Xb which operator cannot be true?
operator options: < > =
Click here to see answer by piglet162431(90)

Question 17345: What is (i)^42.....is it (-1)?
Click here to see answer by venugopalramana(3286)

Question 17647: {x-2}<1
Click here to see answer by whisper(27)

Question 17905: 6>4x-2>-6
Click here to see answer by whisper(27)

Question 17912: A markup rate of 40% was used on a basketball with a selling price of $82.60. Find the cost of the basketball
Click here to see answer by whisper(27)

Question 17908: how would you graph x is greater than 45
Click here to see answer by pvrbrahmam(12)

Question 18081: the ideal width of a certain conveyor belt for a manufacturing plant is 50 in. an actual conveyor belt can vary from the ideal by 7/32 in. find the acceptable widths for this conveyor belt
Click here to see answer by tennis_math(7)

Question 18402: I've just stared on inequalities I need help on this :x-4-2(x+4)<0. Thank you!

Click here to see answer by MelanieBCC(40)

Question 18749: calculate the slope of a line throught the two points (4,8) and (6, 12)
Click here to see answer by momentten(3)

Question 18958: I'm lost what is the answer to s-5>-1 and how do you graph it.
Click here to see answer by mmm4444bot(95)

Question 18942: What is the solution to -4x <= -16
-4x is less than or equal to -16. how do i isolate the x from the -4x?
Click here to see answer by venugopalramana(3286)

Question 19071: Solve. Collect the variable terms on the left side of the inequality
7x + 3 > 9x - 5
Click here to see answer by MelanieBCC(40)

Question 19100: x-3<1

Click here to see answer by sukusu(21)

Question 19290: connie has $10 to buy doughtnuts and coffee. she needs to buy coffee,whitch is $3.50, and will spend the rest on doughnuts. if the doughnuts are $0.40 each, what is the maximum number of doughnuts she can buy?
Click here to see answer by Earlsdon(4898)

Question 19566: x-4-3(x+6)<0?Thanks
Click here to see answer by rahman(247)

Question 19716:
Click here to see answer by MelanieBCC(40)

Question 19753: 63+12x<15
63-63+12x<15-63
12x<-48/12
x<-4
where did we go wrong?
Click here to see answer by mmm4444bot(95)

Question 19894: 2(3x-5)>2x+6
Click here to see answer by vidyamanohar(13)

Question 19913: I need to know how to define a variable and write an inequality to model this situation. Not sure I understand what they are wanting. "There are over 20 species of crocodiles."
Click here to see answer by christinaaa192(28)

Question 20018: 6(x-1)+5 > 5x+1
Click here to see answer by rahman(247)

Question 20295: Simplify the following inequality and express the result using interval notation:
-2|5-x| > 14
-10+2x>14
x>14+10/2
x= (13,14,15...)
Can someone help me with this I get 12/5?
Click here to see answer by da_manl2(2)

Question 20297: 2/3+1/6=15/18
change denominator to a common one 18 by multiplication
6x3=18 so 2x6=12
6x3=18 so 1x3=3
12/18 +3/18=15/18
Click here to see answer by da_manl2(2)

Question 20285: Can someone help with this problem
Simplify the following inequality and express the result using interval notation.
-2|5-x| > 14
Click here to see answer by suresh(20)

Question 20659: I am having problems solving the following inequalities.
Q1) 0.75>-0.5+d
Ans 0.75+0.5 > -0.5 + d +0.5 (adding 0.5 on both sides)

x+4.9 is equal to or less than 0.45
3.35 is equal to or greater than -4.85+n
2/5>t-7/10
Thanks so much
Mary
Click here to see answer by kapilsinghi(68)

Question 20704: 8> 3(5-b)+2

Click here to see answer by longjonsilver(2297)

Question 20812: hello. I've been trying to help my daughter with these two problems but cannot figure it out.
Define a variable, write an inequality and solve problem:

1. The sum of 4 times a number and 7 is less than 3 times that number
2. The sum of two numbers is 100. One number is at least 16 more thanthe other number. What are the two numbers?

Thank you so much. Renee
Click here to see answer by Paul(988)

Question 20944: if 4x-3=-31, what is the value of -2x+11?
Click here to see answer by wuwei96815(245)

Question 21163: x-8<5;x=12
Click here to see answer by Here2Help(19)

Question 21153: 5 + m + 8 is greater than or equal to 14
Click here to see answer by elima(1433)

Question 21281: When solving for inequalities you reverse your inequality symbol when an answer is negative why?

Click here to see answer by elima(1433)

Question 21280: When solving inequalities and you reverse theinequality sign for negative answers, why is that?
Click here to see answer by Photonjohn(42)

Question 21429: I need to know to solve the inequality of
x/2+5>8

Click here to see answer by amritha(1)

Question 21647: how to resolve this
3(x-4)>15
28<4(5-2x)
3(2n+1)>4n+9
3n-10<7(2+n)

Click here to see answer by rahman(247)

Question 21626: How can i figure out how to solve:

-3 < J + 2 < 7
If you can help me with the solving part,i can graph it on a number line myself. PLEASE help me!! I have 42 problems to do like that and its due tomarrow!! Maybe if i catch on to how to solve this problem, i can finish the rest of the 41!!!
Signed,

Ashley
Click here to see answer by rahman(247)

Question 21769: question: assign labels to your model and write the algebraic model.
you have $18.50 to spend on apizza . a cheese pizza costs $14. each extra topping costs .75 cents how many extra toppings can you buy?

Click here to see answer by wuwei96815(245)

Question 21901: Please help w/ this problem.
Identify slope and y-intercept of line perpendicular to another line that is described by a linear equation in general form.
Find the equation of a line, in y=mx+b form, that passes through (9,2) and is perpendicular to the graph of 3x-y=-7.
Thx!
Click here to see answer by venugopalramana(3286)

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