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

Tutors Answer Your Questions about Inequalities (FREE)

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(8007)

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(8007)

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(8007)

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(35256)

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(22740)

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(2198)

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(22740)

Question 101497: Can someone please help me with the below problem. I am totally lost....thank you.

(2/3)(2x�4)=(1/2)(x+3)�4
Click here to see answer by edjones(8007)

Question 101497: Can someone please help me with the below problem. I am totally lost....thank you.

(2/3)(2x�4)=(1/2)(x+3)�4
Click here to see answer by praseenakos@yahoo.com(507)

Question 101715: Could someone please help me answer this problem I need to solve
4-1/2x>x+1
Click here to see answer by stanbon(75887)

Question 101796: w+5<12

Click here to see answer by stanbon(75887)

Question 101796: w+5<12

Click here to see answer by staciie21(2)

Question 101836: I am trying to do the following word problem and must be reading something wrong. Everytime I come up with $1,182.50 and I am told it is wrong....please help.
You have accepted a job at an annual salary of $27,630. Sorry, but you will not be able to afford that dream home on this salary! However, your employer was gracious enough to include a year-end bonus of $750. WOW! You are to be paid twice a month. What will your gross pay be for each paycheck?
Click here to see answer by stanbon(75887)

Question 101912: how do i solve this problem?[[9n<45

Click here to see answer by checkley75(3666)

Question 101973: can someone help me with these problems:
(9x+2)=5[11-2(2-x)+3]
Click here to see answer by stanbon(75887)

Question 102124: -2.6y>1.3
Click here to see answer by checkley75(3666)

Question 102156: 14-8x< 6x + 36

Click here to see answer by jim_thompson5910(35256)

Question 102156: 14-8x< 6x + 36

Click here to see answer by checkley75(3666)

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 staciie21(2)

Question 102245: Please help me to solve this inequality. I am confused on how to do it.
7(x-3)>5x-14
I really appreciate your help!
Thank you.
Click here to see answer by checkley75(3666)

Question 101658: the three sides of an equalateral triangle are increased by 20cm,30cm,40cm respectively. The perimeter of the resulting triangle is between twice and three times the perimeter of the original triangle. What can you conclude about the length of a side of the original triangle?
Click here to see answer by edjones(8007)

Question 102416: rewrite equation as a function of x

-3x+4y=11
Click here to see answer by edjones(8007)

Question 102415: evaluate each function for the value specified

f(x)=x^2-7x+10;

find:

(a) f(0)
(b) f(5)
(c) f(-2)
Click here to see answer by prabhjyot(165)

Question 102448: Please help solve for y
(y-5)/(x+2) = -7/4
Click here to see answer by stanbon(75887)

Question 102413: You have at least $30 in change in your drawer, consisting of
dimes and quarters. Write an inequality that shows the different number of coins
in your drawer.
Click here to see answer by stanbon(75887)

Question 102453: I do not understand how to find the answer for these two problems:
Your science teacher says the grades (g) in your class can be represented by the inequality /g-85/_< 10. What is the lowest grade and what is the hightest grade in the class? (The _ make is suppose to be under the<)
part 2:
Suppose the grade in you Language Arts class range from 68 to 94. Represent this infromation on a number line after writing a compound inequality using (g).
Click here to see answer by edjones(8007)

Question 102469: My son has to write (1) inequalities/ solve/ and graph it I do not remember how to do this so I do not know how to help him I beleive that /x-3/ =5 and
/x-15/< 5 are both examples of inequalities and I beleive this is what she means by he is to write his own but I do not remember how you graph or solve the problem. Any help to reteach me would be helpful. Thank you
Click here to see answer by stanbon(75887)

Question 102463: I am unsure how to do this problem:
Suppose the grades in your Language Arts class range from 68 to 94. Represent this information on a number line after writing a compound inequality using (g)
Thank you for any help you can give that helps me to understand how to do this.
Click here to see answer by doukungfoo(195)

Question 102331: What is the answer to -10/21n > -2 4/7? I need to make sure that my answer is correct.
Click here to see answer by mjgulinello(10)

Question 102412: Graph each of the following inequalities.

3x-4y < 12
Click here to see answer by jim_thompson5910(35256)

Question 102411: Graph each of the following inequalities.

4x+y >= 4
( >= means greater than or equal to)
Click here to see answer by jim_thompson5910(35256)

Question 102410: Determine the correct half�plane in each case, and complete the graph.
y>3
Click here to see answer by jim_thompson5910(35256)

Question 102605: what's 18-10x< negative 22?
Click here to see answer by jim_thompson5910(35256)

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, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205