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

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Algebra: Inequalities, trichotomy

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Question 37535: I need to find the GCF of 6, 18, and 30 and I also need to find the LCM for 4 and 20. Can someone help please?
Thank you and have a great day!!
Click here to see answer by fractalier(1804)

Question 37811: 7x < 8 - 3x <6+7x
Click here to see answer by fractalier(1804)

Question 37869: How do I solve x > 6x - 10 and what is the answer?
Click here to see answer by benni1013(141)

Question 38227: *write an inequalities that corresponds to each statement.
x is less than y. _______
*tell hether statement is tue or false.
-5<-2
*solve each inequality
x+3<4
Click here to see answer by stanbon(26255)

Question 38472This question is from textbook algebra 1
: Could you help me figure this problem out I have worked hard and Ican't get the steps or the answersThis question is from textbook algebra 1

Click here to see answer by hellyeah(21)

Question 38479: x2-3x+1=0
Click here to see answer by stanbon(26255)

Question 39031: Solve the inequality and express the solution in interval notation:
x^2 - 6x + 11 <18
Click here to see answer by stanbon(26255)

Question 39079: I need your help please.
The number of senior citizens (65 and over) in the United States in millions n years after 1990 can be estimated by using the formula.
s=0.038 + 31.2
(US Bureau of the Census) The percentage of senior citizens living below level n years after 1990 can be estimated by using the formula.
p=0.25n + 12.2
a. How many senior citizens were there in 2000?
b. In what year will the percentage of seniors living below the poverty level reach 7%.
c. What is the first year in which can we expect both the number of seniors to be greater than 49 million and fewer than 7% living below the poverty level.

Thank you.

Click here to see answer by AnlytcPhil(958)

Question 39024: This is from Dr. Rapalje's Intermediate Algebra book. Page 81, #8
Solve the inequality. Give answer in interval notation.
-8 - 3(X - 4) < 3(6 - X)
I ended up with x < 14
The answer is (-oo, oo)
I have no idea how he came up with that answer. Thanks!
Click here to see answer by fractalier(1804)

Question 39165: seven times a number is less than 84
Click here to see answer by Nate(3495)

Question 39347This question is from textbook Beginning Algebra

: This one has me floored and there are no other similar problems to compare it to. I bet it is REALLY simple, but I cannot figure out how to start it. Please help, and thank you!
PROBLEM:
The cost for a long distance telephone call is $0.36 for the first minute, and .21 for each addtional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3.00.

This question is from textbook Beginning Algebra

Click here to see answer by checkley71(8405)

Question 39368: x+33/x+3 is greater than or equal to 7....could you please solve this and show how to work it out
Click here to see answer by Nate(3495)

Question 39383This question is from textbook Intermediate Algebra

: Find the midpoint of the line segment PQ for P(4, -3), Q(2,7)This question is from textbook Intermediate Algebra

Click here to see answer by longjonsilver(2297)

Question 39384This question is from textbook Intermediate Algebra

: If M (5,2) is the midpoint of segment PQ and the coordinates of Q are (3,-3), find the coordinates of P.This question is from textbook Intermediate Algebra

Click here to see answer by fractalier(1804)

Question 39486: A small firm produces both AM and AM/FM car radios. The AM radios take 15h to produce, and the AM/FM radios take 20h. THe number of production hours is limited to 300h per week. The plant's capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 AM radios and
at least 3 AM/FM radios be produced per week. Write a system of inequalities representing this situation. X = number of AM radios and Y = number of AM/FM radios.
Click here to see answer by Nate(3495)

Question 39523This question is from textbook

: 4. Find the midpoint between these points:
(2, 7) and (-4, 1)
This question is from textbook

Click here to see answer by stanbon(26255)

Question 39522This question is from textbook

: 2. Solve for x:
11x + 3 – 13x – 7 < 2(5 – 4x)
This question is from textbook

Click here to see answer by stanbon(26255)

Question 39528This question is from textbook

: 1. Solve for x:
2(x + 3) > 20This question is from textbook

Click here to see answer by checkley71(8405)

Question 39528This question is from textbook

: 1. Solve for x:
2(x + 3) > 20This question is from textbook

Click here to see answer by fractalier(1804)

Question 39527This question is from textbook

: Fill in the chart given this linear equation:
2x + y = 42.
x y
-2
-1
0
1
2This question is from textbook

Click here to see answer by fractalier(1804)

Question 39518This question is from textbook

: . Fill in the chart given this linear equation:
2x + y = 42.
x y
-2
-1
0
1
2This question is from textbook

Click here to see answer by fractalier(1804)

Question 39550This question is from textbook

: The linear equation x = -1 graphs as a horizontal/vertical/diagonal line (choose the correct label and type it below).This question is from textbook

Click here to see answer by fractalier(1804)

Question 39545: Solve the following inequalities:
A)
B)
C)
Click here to see answer by Nate(3495)

Question 39658This question is from textbook
: Write an inequality that contains both of the solutions of the equation? 4x=7+2/xThis question is from textbook

Click here to see answer by stanbon(26255)

Question 39673: Solve the following system of linear inequalities by graphing.
3x - y < 2 and x + y > 2
I can come up with several solution sets for both, but none for a consistent system. Any suggestions?
Click here to see answer by josmiceli(3003)

Question 39827: bob has $3 more than Carol, and Carol has twice as much as Leon. Together they have $108. How much does each person have?
Click here to see answer by atif.muhammad(135)

Question 39854: what is the domain of function y=squaroot of x2-9
show answer in two different ways
a. algebraic solution
b. graphical solution
Click here to see answer by fractalier(1804)

Question 39876: X/3 + 1/6 (less than or equal to) 2x + 3/2
Click here to see answer by stanbon(26255)

Question 39876: X/3 + 1/6 (less than or equal to) 2x + 3/2
Click here to see answer by fractalier(1804)

Question 39878: (2+3i)(1-i)=
Click here to see answer by stanbon(26255)

Question 39877: (x-2)(x-5)<0
Click here to see answer by fractalier(1804)

Question 39877: (x-2)(x-5)<0
Click here to see answer by stanbon(26255)

Question 39879: which one defines a function?
1. y=x-1 2. y^2=4-x^2 3.y=square root of x
Click here to see answer by stanbon(26255)

Question 39882: 10 ^ log10(100)
Click here to see answer by fractalier(1804)

Question 40233: Rewrite the statement so the inequality symbol point the opposite direction.
5 £ 14
Click here to see answer by fractalier(1804)

Question 40422: -2x^2+7x-10<=(-3)x+2
Possible answers
a. (-inf,-3) U (-2,+inf)
b. (-inf,2) U (3, inf)
c. (-3,-2)
d. (2,3)
Click here to see answer by fazlerabbi(9)

Question 40417: x^2 (x-2)(x+1) ≥0
Answer: (-∞, -1] or {0} or [2, ∞)
solution?
Click here to see answer by Nate(3495)

Question 40457: please help!!
If 100C^2 has a value of 4,950, what is the value of 100C^98?
I thought it would be that 2475*98 would give me the answer but that wasnt an option
Click here to see answer by Nate(3495)

Question 40619: Could someone please help me to understand how to solve this type of problem? I just cannot seem to get it.
Solve each rational inequality and state the solution set using interval notation.

a__
a + 2 >0
(I can't get it to post correctly, a is over a + 2 and both together are suppose to be >0)

Click here to see answer by junior403(76)

Question 40620: Solve each rational inequality and state the solution set using interval notation.
x + 3/x lessthan or eqaul to -2

(I don't know why this dosen't post right. x + 3 over x is lessthen or eqaul to -2)
Click here to see answer by junior403(76)

Question 28339: whats the anwser to -3z<-27
Click here to see answer by tran3209(100)

Question 40694: |5 – x| ≤ 4
Click here to see answer by abcdefg(37)

Question 40695: 48 ≥ 4x(x-1)
Click here to see answer by Nate(3495)

Question 40732: Question:

Let a < b. Show that (a+b)/2 is the midpoint between a and b on the number line. I think that you use the metric way to slove this but I am not sure as to how to do that. Thanks
Julie
Click here to see answer by Nate(3495)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330