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

Tutors Answer Your Questions about Inequalities (FREE)

Question 32320: 4x=17>37 can u please solve this for me?
Click here to see answer by mukhopadhyay(490)

Question 32321: can u please solve this peoblem for me? 4x+17>37
Click here to see answer by mukhopadhyay(490)

Question 32510: get x on a side by itself. 2x-10+3x/4<-5
Click here to see answer by Earlsdon(6294)

Question 31914: What is the situation when 2 linear inequalities have no solution?
Click here to see answer by mukhopadhyay(490)

Question 32618: I am a mother of a 14 yr old and she has fallen behind in math and i am unable to help her. I used to know algebra very well. she is in 8th grade and the teacher has sent som work home ( i have no clue). I have several sheets to help her with. example: rewrite each inequality and solve.
6x+2>14
3x+2x+>11
1/2x>9
4(2x+3)<44
4x<4
Click here to see answer by Earlsdon(6294)

Question 32640: 3xsquared-25x=-28
and also
x2-24x+129=0
Thank you for the help! My parents can't remember algebra.
Click here to see answer by stanbon(75887)

Question 32811: I am having a hard time using the formulas they provided with the information given.
The number of senior citizens (65 and over) in the US in million n years after 1990 can be estimated by using the formula s= 0.38n+31.2
The percentage of senior citizens living below the poverty 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 we can expect both the number of senioirs to be greater than 40 million and fewer than 7% living below the poverty level?
I was trying for a, 0.38(2000)+31.2=
I was also trying for b, -0.25(0.07)+12.2
I am just stumped on c.
Click here to see answer by stanbon(75887)

Question 32909: hi, i am a mature student am have got the inequalities so far but am stuck on how to solve squared ones i.e. x squared etc. If you could help that'd be great.
regards denise
Click here to see answer by checkley71(8403)

Question 32945: 6x<30
Click here to see answer by Michelle L(2)

Question 33087: Solve the following inequality.
I have no clue how to solve this problem.
What is the answer & how do I go about solving the problem to get the answer?? I can not find this in my book....aghhhhh

Solve the following inequality.

10x - 21 > 7x + 15
a. x > -12
b. x < -2
c. x > 12
d. x > -2

Click here to see answer by Earlsdon(6294)

Question 33456:

Solve the inequality:



2/3(3x-9) < 8

 


Click here to see answer by sarah_adam(201)

Question 33456:

Solve the inequality:



2/3(3x-9) < 8

 


Click here to see answer by AnlytcPhil(1806)

Question 33555: 5+p > 3p-4
Click here to see answer by Cintchr(481)

Question 33630: The instructions say divide. The problem is 4 / 7+i. I have come up with 7/12 + 1/12i. Is the the correct solution? THanks in advance.
Click here to see answer by sarah_adam(201)

Question 33631: The instructions say Multiply and write the result in the form of a+bi. The problem is (5-8i)(5+2i). I have come up with 9-50i as an answer but I have my doubts about it. Any help would be appreciated. Thanks.
Click here to see answer by sarah_adam(201)

Question 33633: Hello. THe problem states add or subtract and the problem itself is
9i + (-9 - i). I have come up with -9+8i as a solution. Could you please tell me if this is correct and if not, where I messed up. Thanks in advance.
Click here to see answer by Earlsdon(6294)

Question 32054: (2/(x+4)) - (3/(x-1))>=0
Is the answer (-4,1)?
Thank you,
Alexus
Click here to see answer by Prithwis(166)

Question 34219: 4x+8=6x-4
Click here to see answer by sarah_adam(201)

Question 34455: 7g-15=-3g+175
Click here to see answer by hydromojo(20)

Question 34708: Hello, Thanks in advance for your assistance. I need help with inequalities.
Question:
Y/-3 <= 4
I tried to solve by multiplying each side by the recipricol of -3/y, but could not solve w/the same rules as some of the other inequality problems that i've done. What is the rule when the unknown is part of the fraction?
Click here to see answer by stanbon(75887)

Question 34764: hiya i reli need help on these equations. x=-2,-1,0,1,2 y=-x

plz help i have a test tomoz
Click here to see answer by checkley71(8403)

Question 34881: solve for x
ax + by = c
Click here to see answer by checkley71(8403)

Question 34899: 1) FIND THE SOLUTION OF THE SYSTEM OF EQUATIONS: A COLLEGE BASKETBALL TEAM MADE 40 FIELD GOALS IN A RECENT GAME, SOME 2 POINTERS AND THE REST 3 POINTERS. ALL TOGETHER THE 40 BASKETS COUNTED FOR 89 POINTS. HOW MANY OF EACH TYPE OF FIELD GOALS WAS MADE?

2)SUPPOSE THAT 6.5 MILLION POUNDS OF COFFEE ARE SOLD WHEN THE PRICE IS $8 PER POUND AND 4.O MILLION POUNDS ARE SOLD WHEN IT IS $9 PER POUND.
(A) FIND A LINEAR FUNCTION THAT EXPRESSES THE AMOUNT OF COFFEE SOLD AS A FUNCTION OF THE PRICE PER POUND.
(B) USE THE FUNCTION OF PART A TO PEDICT THE NUMBER OF POUNDS OF COFFEE SOLD WHEN THE PRICE IS $6 PER POUND.
Click here to see answer by checkley71(8403)

Question 35059: Hello,
My name is Kristin and my time for the college placement exam is approaching and I need help!!!!!so please help
THE INEQUALITY X^2-14X>15 IS EQUIVALENT TO:
A. -3< X <5
B. -1< X <15
C, 3< X <5
D. X< -1 OR X >15
E. X< 3 OR X >5
I believe this is setup like x^2-14x >15= x^-14x-15 >0. then (x+1)(x-15)>0= x+1 >0 & x-15 >0. This is where I get confused after this point. I think the ans is B. because according to the two outcomes, you know w/ x+1 has to be greater than 0, which -1 isn't greater than 0. Also w/ x-15 has to be greater than 0 as well (i'm confused here)
THANK YOU IN ADVANCE,
KRISTIN
Click here to see answer by venugopalramana(3286)

Question 35118: 4>C+6>2
Click here to see answer by Prithwis(166)

Question 35406: please help me solve this inequality y+4>-2
Click here to see answer by Prithwis(166)

Question 35621: Graph the equation x-y/2 = x+y/4
Click here to see answer by rapaljer(4671)

Question 35623: The Slope of a line through the point (1,3) is 1.5. If the point (-3,y) lies on the line, find the value of y.
Click here to see answer by rapaljer(4671)

Question 35652: 1/x + 1/y = 1/2
Click here to see answer by rapaljer(4671)

Question 35653: A line with x-intercept -4 passes through (2,6) and (p,10). Find p.
Click here to see answer by rapaljer(4671)

Question 35651: Find s if the line joining (2,6) to (s+4,s) is parallel to the line joining (5,3) and (-2,0).
Click here to see answer by rapaljer(4671)

Question 35691: 1/x + 1/y = 1/2
solve for x and y
Click here to see answer by rapaljer(4671)

Question 35888: Find the value of "a" such that is a perfect square
y^2+2y+a
Click here to see answer by venugopalramana(3286)

Question 36178: "A purse contains 22 coins, some of wich are dimes and the rest, quarters, Altogether, the coins are worth more than $3.40. At least how many of the coins are quarters? At most how many are dimes?
Please help me!"
Click here to see answer by checkley71(8403)

Question 36514: (1) solve inequality: 5-3x>14
Click here to see answer by benni1013(206)

Question 36683: what is the answer to this equation please show work!
Solve -14<3x+1<1
_
negative forteen is less than or equal to three x plus 1 is less than one.
Click here to see answer by stanbon(75887)

Question 36743: A electronics store wants to order at least 3 times as many DVD players as VHS players. Write an inequality expressing this relationship.

Click here to see answer by checkley71(8403)

Question 36955: A small firm produces both AM and AM?FM car radios. The AM radios take 15 hours to produce and the AM/FM radios take 20 hours. The number of production hours is limited to 300 hours 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.
Click here to see answer by mbarugel(146)

Question 36991: A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each of type of bean should be used in the mixture.
Click here to see answer by checkley71(8403)

Question 37492: Need help with the following:
Solve the inequality |3x - 1| < 7 and write the answer in the set notation.
Click here to see answer by venugopalramana(3286)

Question 37512: Simplify: -3[-4+1]/(-9)
Click here to see answer by fractalier(6550)

Question 37510: -2-4+7+3(-4)+17
Click here to see answer by fractalier(6550)

Question 37514: Evaluate 3x - 7y when x = -2 and y = -3.
Click here to see answer by fractalier(6550)

Question 37516: Find the area of a fenced yard with a length of 9 yards and width of 5 yards.
Click here to see answer by fractalier(6550)

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