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

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 Question 297922: how do i do x> 3 ? i watched in class today and it makes no sense to me on figuring it out!!! :( Click here to see answer by Alan3354(34674)
 Question 297922: how do i do x> 3 ? i watched in class today and it makes no sense to me on figuring it out!!! :( Click here to see answer by jim_thompson5910(29613)
 Question 297922: how do i do x> 3 ? i watched in class today and it makes no sense to me on figuring it out!!! :( Click here to see answer by JBarnum(2088)

 Question 298886: I am doing homework and this one has me stumped. I can not figure out how to even start it. Here is the problem and what it says to do. Solve -16<=4x-3<-2 Can anyone help me with this and explain how to do it?? Thanks in advance!! Click here to see answer by ankor@dixie-net.com(16523)

 Question 299054: Two cars leave towns 480 kilometers apart at the same time and travel toward each other. One car's rate is 12 kilometers per hour less than the other's. If they meet in 3 hours, what is the rate of the slower car? Click here to see answer by checkley77(12569)

 Question 299190: The science club consisting of 2 adults and 8 students went to the city park to plant trees. Each adult planted z trees and each student planted 1 tree. all together, the group planted at least 12 trees. How do you write an inequality to express this situation? Click here to see answer by jim_thompson5910(29613)

 Question 299194: Heres another one and these are making me feel dumb!! Solve using the elimination method 3r-4s=5 4r+3s=15 Type an ordered pair. Either integer or fractions. Thanks again!! Click here to see answer by jim_thompson5910(29613)

 Question 299903: solve compound inequality 4>-5x+3 or 10<=-4x+5 the answer option are a.(-1/5,infinity) b. (-infinity,infinity) c. (-infinity,-5/4 cup (-1//5,infinity) d. (-infinity,-5/4) help!!! Click here to see answer by Edwin McCravy(9716)

 Question 300248: im currently revising for exams and this question came up: 2y<3-(y+6) i know the steps to take but i came up with the wrong answer completely, could you please show me how to do this as my exam is tomorrow, Thanks Click here to see answer by richwmiller(10275)

 Question 300638: How would you write an inequality for a problem that says: In the triangle below what values of "m" in centimeters allows the perimeter of the triangle to be less than 100 cm.? The three sides of the triangle are: " (m+15)cm. " " (2m-5)cm. " " (3m+6)cm. " Click here to see answer by jim_thompson5910(29613)
 Question 300638: How would you write an inequality for a problem that says: In the triangle below what values of "m" in centimeters allows the perimeter of the triangle to be less than 100 cm.? The three sides of the triangle are: " (m+15)cm. " " (2m-5)cm. " " (3m+6)cm. " Click here to see answer by stanbon(60771)

 Question 300795: I am having a tough time solving this problem, any help would be much appreciated. solve an inequality (x)/(x+20)>(2)/(x+8) A. (-∞,-10) (-10,-8) (4,∞) B. (-∞,-8) (4,∞) C. (-10,-8) D. (-20,-10) (-8,-4) E. (-∞,-20) (-10,-8) (4,∞) I came up with E but I'm not sure if the answer is correct. Click here to see answer by Fombitz(13828)

 Question 300818: I'm at a lose here. I've derived an answer but I'm lost as to whether it is correct. Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator. (-3)/(2p^2+7p-15),p/(2p^2-11p+12),2/(p^2+p-20) 1. , , 2. , , 3. , , 4. , , 5. , , I cam up with 5 as my equation had (2p-3)(p+5)(p-4) as the LCD. Any help with this would be much appreciated. Click here to see answer by Alan3354(34674)
 Question 300818: I'm at a lose here. I've derived an answer but I'm lost as to whether it is correct. Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator. (-3)/(2p^2+7p-15),p/(2p^2-11p+12),2/(p^2+p-20) 1. , , 2. , , 3. , , 4. , , 5. , , I cam up with 5 as my equation had (2p-3)(p+5)(p-4) as the LCD. Any help with this would be much appreciated. Click here to see answer by Edwin McCravy(9716)

 Question 300868: If r,s, and t are integers greater than 1, where rs = 15 and st = 33, which of the following must be true ? A t > r > s B s > t > r C s > r > t D r > t > s E r > s > t Click here to see answer by Edwin McCravy(9716)

 Question 301486: 4x + 3= 2x 5 2 these are fractions. i came up with x= 1.5 is that right so 4x over 5 and 3 over 2 Click here to see answer by richwmiller(10275)
 Question 301486: 4x + 3= 2x 5 2 these are fractions. i came up with x= 1.5 is that right so 4x over 5 and 3 over 2 Click here to see answer by JBarnum(2088)

 Question 301572: how do i awnswer the quetion -4+6-d≤21 i keep gettin 3.75 but when i check it, it will not work out Click here to see answer by richwmiller(10275)

 Question 301689: Solve by the elimination method x+9y=64 -x+2y=13 I need to know what the solution is has to be the orderd pair using intergers or fractions. Thanks Click here to see answer by Fombitz(13828)

 Question 301704: AMY PAID 63.77 FOR A PAIR OF RUNNING SHOES DURING 20% OFF SALE..WHAT WAS THE ORIGINAL PRICE OF RUNNING SHOES. Click here to see answer by vickiej57(4)

 Question 301730: For which of the following ordered pairs (s, t) is s + t > 2 and s – t < -3 ? a (3,2) b (2,3) c (1,8) d (1/2, 3/2) e (0,3) Click here to see answer by vickiej57(4)

 Question 301764: What is the average (arithmetic mean) of the quantities in the list above? 12-n,12,12+n Click here to see answer by Alan3354(34674)

 Question 301941: For which of the following values of m will the value of 3m - 1 be greater than 10 ? a) 4 b) 3 c) 2 d) 1 e) 0 Click here to see answer by london maths tutor(243)

 Question 302120: I have a few math questions that I need help with. Can you show me how to do these problems?? 2y-3x=4 2y-5x=8 y= -3x+7, y= -2x- 5 x+y = 8, x-y = 12 Click here to see answer by richwmiller(10275)
 Question 302120: I have a few math questions that I need help with. Can you show me how to do these problems?? 2y-3x=4 2y-5x=8 y= -3x+7, y= -2x- 5 x+y = 8, x-y = 12 Click here to see answer by stanbon(60771)

 Question 302142: I am wondering if anyone could help me with this story problem. Here are the directions: Write and solve an equation, inequality, or system of equations to answer the question. Here is the problem: Olivia bought 5 greeting cards that were each the same price. She used coupons worth \$2.50. Alexandra bought 4 cards and used a \$1.00 coupon. Each girl paid the same amount. What was the price of each card? Click here to see answer by mananth(13127)

 Question 302146: I am very bad at story problems, and this is my last one. Directions: Write and solve an equation, inequality, or system of equations to answer the question. Here's the problem: Two numbers have a sum of 39. The larger number is 9 less than twice the smaller number. Find the two numbers. Click here to see answer by mananth(13127)

 Question 302144: I have another story problem for anyone who's willing to show me how to do. The directions are: Write and solve an equation, inequality, or system of equations to answer the question. Here is the question: Brandon is planning a suprise party for Ashley. He has \$25 to spend for drinks and a cake. He knows that the cake will cost \$18 and drinks will cost \$0.50 per person. What is the greatest number of people he can invite to the party? Click here to see answer by mananth(13127)

 Question 302178: A snowman weighing 250 pounds begins to melt in the spring. It loses 4% of its weight every day. How many full days will pass before it weighs less than 100 pounds? a 17 b 22 c 23 d 27 e 45 Click here to see answer by stanbon(60771)

 Question 302196: there are 8 sections of seats in an auditorium. Each section contains at least 150 seats but not more than 200 seats . which of the following could be the number of seats in this auditorium ? a) 800 b) 1000 c) 1100 d) 1300 e) 1700 Click here to see answer by stanbon(60771)

 Question 302397: use set-builder to solve 4y-2<8y-5 to get a solution. Click here to see answer by london maths tutor(243)

 Question 302833: 8x+2-8x is less than 2-2x+2 Solve the inequality Click here to see answer by london maths tutor(243)