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

Tutors Answer Your Questions about Inequalities (FREE)

Question 316677: 12<1-x=<15
i come up with an answer of -11 and -14 however my book says this is wrong, only the negative -14 is correct
Click here to see answer by stanbon(57337)

Question 316677: 12<1-x=<15
i come up with an answer of -11 and -14 however my book says this is wrong, only the negative -14 is correct
Click here to see answer by solver91311(16877)

Question 316677: 12<1-x=<15
i come up with an answer of -11 and -14 however my book says this is wrong, only the negative -14 is correct
Click here to see answer by nyc_function(2733)

Question 316645: Why does the inequality sign change when both sides are multiplied or divided by a negative number, and does this always happen with equations. Can you give me an example to go by?
Click here to see answer by stanbon(57337)

Question 316717: 2 - x < 4
Click here to see answer by rfer(12657)

Question 316717: 2 - x < 4
Click here to see answer by jim_thompson5910(28593)

Question 316719: x+2>8
Click here to see answer by user_dude2008(1861)

Question 316723: How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation?

Click here to see answer by stanbon(57337)

Question 316727: 5 + (-8)>4 (-2) + 1
Click here to see answer by stanbon(57337)

Question 316836: 3(x-2)-1<2-5(x+6)
Click here to see answer by Fombitz(13828)

Question 316761: At a 15% discount rate, Jack's discount was more than $21 on the jacket he purchased.
Write an inequality to describe this situation using p for the original price of the jacket.

Click here to see answer by Theo(3461)

Question 316816: Solve 2z/3 - 3 z/4 + 4z/5 - 5z-6 <7
Click here to see answer by Fombitz(13828)

Question 316936: i have 67
Click here to see answer by Fombitz(13828)

Question 316954: Solve the inequality for y.
16 less than or equal to y + 5
Click here to see answer by JBarnum(2044)

Question 316979: 2x < 6
Click here to see answer by jim_thompson5910(28593)

Question 316980: 4x+3<6x+7
Click here to see answer by jim_thompson5910(28593)

Question 317004: a mixture of alcohol and water contains a total of 36 oz of liquid. there are 9 oz of pure alcohol in the mixture. what percent of mixture is water? what percent is alcohol?
Click here to see answer by mananth(12270)

Question 317032: Add and simplify if possible.
6x / x^2 - 4 + x / x - 2
Click here to see answer by JBarnum(2044)

Question 317159: If 1= 2(x+y), then y=
Click here to see answer by Fombitz(13828)

Question 317222: Solve.
sqrt 9x+67 = x+5
Click here to see answer by Fombitz(13828)

Question 317231: 5 + (-8)>4 (-2) + 1
Click here to see answer by JBarnum(2044)

Question 317210: 5 + (-8)>4 (-2) + 1
Click here to see answer by Fombitz(13828)

Question 317339: 8y-6<-54
Click here to see answer by jim_thompson5910(28593)

Question 317359: How do you know if a value is a solution for an inequality?

How is this different from determining if a value is a solution to an equation?

If you replace the equal sign of an equation and put an inequality sign in its place, is there ever a time when the same value will be a solution to both the equation and inequality?

Click here to see answer by Edwin McCravy(8908)

Question 317356: How do you know if a value is a solution for an inequality?
Click here to see answer by nyc_function(2733)

Question 317357: How is this different from determining if a value is a solution to an equation?
Click here to see answer by nyc_function(2733)

Question 317381: use the properties of inequalities to solve the following inequality. write the solution set using set-builder notation.
9(x-8)>or=to -9x-7.
thank you

Click here to see answer by jim_thompson5910(28593)

Question 317322: The clock in the bell tower at Webster College chimes every hour on the hour: once at 1 o’clock, twice at 2 o’clock, and so on. The clock takes 5 seconds to chime at 4 o’clock and 15 seconds to chime at 10 o’clock. The time needed to chime 1 o’clock is negligible. What is the total number of seconds needed for the clock to do all of its chiming in a 24-hour period starting at 1 P.M.?
Click here to see answer by Theo(3461)

Question 317415: Which of the following CANNOT be a solution to 3x = 6 ≤ - 4x -2?
A: -8 B: -3 C: -8/14 D: -8/7 E: -1

Click here to see answer by Fombitz(13828)

Question 317221: Divide and Simplify.
3x - 18/10 / x-6/35x
Click here to see answer by Fombitz(13828)

Question 317456: 3x 5>5x-3
Click here to see answer by JBarnum(2044)

Question 317463: 1/3 x - 2(is less than or equal to) 2/3x - 6
Click here to see answer by JBarnum(2044)

Question 317454: 21p + 5 > 10x + 7
Click here to see answer by JBarnum(2044)

Question 317465: 21p + 5 > 10x + 7 solve variable for p
Click here to see answer by JBarnum(2044)

Question 317711: Okay, let's say that we start with 3x - 6 > 12. We simplify it to the solution set: {x| x > 6}.
Here's my question, is 8 a solution?
If yes, why? Shouldn't 6 be the solution?
If no, why?

Click here to see answer by Earlsdon(6287)

Question 317771: problem:-2/3z+9 > and = 2/3z+1
I subtracted 2/3z from right side ande added it to the left side.
I subtracted 9 from left and added to right.
I ended up with -4/3z >and = -8.
I dont think that is right.

Click here to see answer by jim_thompson5910(28593)

Question 317710: 1- x_ <5 (how do i type it as a fraction?) ( x over 2)
2
Click here to see answer by Fombitz(13828)

Question 317894: I put the wrong equation on here! I need to check my answer of
x^2 + x is less than or equal to 0.
sorry and thanks so much!
I got 0
thanks
cz
Click here to see answer by stanbon(57337)

Question 317985: I have to solve this inequality, but I do not remember how.
-5 < 3 – 4x ≤ 7
Click here to see answer by Alan3354(30993)

Question 318207: -5(x-1)<5(x+1)
Click here to see answer by Fombitz(13828)

Question 318278: If a < b, then a^3 < b^3. True or False?
If a > b and c > d, then c - a < d - b. True or False?
Click here to see answer by solver91311(16877)

Question 318278: If a < b, then a^3 < b^3. True or False?
If a > b and c > d, then c - a < d - b. True or False?
Click here to see answer by Edwin McCravy(8908)

Question 318503: Uma wants to buy a video game system for $270. She has $60 and is saving $30 each week. Solve the equation 30w + 60 = 270 to find how many weeks w it will take Uma to save enough to buy the system.
what is the awnser?
Click here to see answer by stanbon(57337)

Question 318507: Suppose you have 30 CDs. You know that you have 11 more CDs than your friend. Write and solve an equation to find the number of CDs your friend has.
Click here to see answer by mananth(12270)

Question 318510: 2x – 26 = 10

b – 2 = –6

3(y + 6) = 30

3x – 18 = 3

–7b = 21

–5p + 10 + 2p = –5

9n + 7 + 3n = 103

5x – 5 = 3x – 9

y – 5 = –8

2x + 16 = –6

6(y + 4) = 66

6x – 3 = 3x – 9

i need the awnser to ALL of these
i cannot figure out
Click here to see answer by Alan3354(30993)

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