# Margie

Popular questions and responses by Margie-
## How do I do this.?(Math.)

Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y - 2x = -5 y = 2x - 5 Now let's substitute 2x - 5 for y in the second equation to solve for x:

*asked on February 5, 2007* -
## Physics

Two students walk in the same direction along a straight path, at a constant speed - one at .90 m/s and the other at 1.90 m/s. a.) assuming that they start at the same point ant the same time, how much sooner does the faster arrive at a destination 780 m

*asked on August 31, 2008* -
## Help 6!!!

6. What happens to the graph of the line y = 3x -2 when the equation is changed to y = 3x +6? What do you think happens...how do the slopes compare? The y intercept changes, does it move the line up or down?

*asked on October 13, 2006* -
## Algebra111111!!!

Choose the ordered pair that is a solution to the system of equations. -x + y = 12 x + 2y = 3 a. (7, 5) b. (5, -7) c. (-7, 5) d. (-7, -5) e. none of the above This question wants you to find the point of intersection of the two lines, provided they're not

*asked on October 14, 2006* -
## English - beowulf

The relationship between the narrator andthe story, and between the narrator and the audience, in Beowulf?

*asked on August 28, 2008* -
## Algebra22222!!!

Choose the ordered pair that is a solution to the system of equations. 3x - y = 10 -x + y = -4 (3, -7) (-1, 3) (3, -1) (3, 1) Follow the example I gave in your previous question. I'm not going to do all of them. You want to eliminate one of the variable

*asked on October 14, 2006* -
## MATH(PLease Help)

Problem: (y+2)/(y) = 1/(y-5) Directions: Solve the rational expression. Remember that if: a/b = c/d then: a * d = b * c I believe in school they call this the fraction crossover rule or fraction cross rule or something like that. i would work it like a

*asked on March 8, 2007* -
## physics

Sorting Elements: Give out bags of small, varied objects of different shapes colors, and sizes, such as seashells, beads, or rocks. Have groups of students orgasnize the shells so that similar objects are near each other, but make sure that they are

*asked on November 12, 2012* -
## Engineering Economics

Sales of bottled water in the U.S totaled 16.3 gallons per person in 2004. Water costs .40 cents per bottle.A municipal company provides tap water for $2.10 per 1000 gallons. If the average person drinks two bottles of water per day or uses 5 gallons per

*asked on October 10, 2011* -
## Physical Science

Suppose you are traveling in a bus at highway speed on a nice summer day and the momentum of an unlucky bug is suddenly changed as it splatters onto the from window. a. Compared to the force that acts on the bug, how much force acts on the bus? (more) (the

*asked on April 28, 2009* -
## English - beowulf

so Beowulf is an epic poem but what sorts of conflicts with or resistances to the idealogy of epic can be expressed. What are some examples in the poem?

*asked on August 28, 2008* -
## Math(Please Help)

* I don't get this problem at all... 4(x+2) 6x^2 ------ * ---- 5x 2x what are the directions? in the denominator, you have 10x^2 in the numerator, you have 24x^2(x+2) the x^2 divides out, and the numbers can be reduced. that would be (12(x+2))/(5) the

*asked on February 21, 2007* -
## Check Please(Math)

(-2x^2y)^3*(5xy^3)^2=(-2x^2y)^3 = -8 x^6 y^3 *Please check my work. What did you do with the (5xy^3)^2 part. The first part you did ok. But you can't just throw away part of the equation. I don't get that part.What do I do there.? (5xy^3)^2=25x^2y^6 You

*asked on February 6, 2007* -
## Please Check My Math Work

(3sqrt5)(2sqrt10) I got:6sqrt50 Is this correct.? You can take this one step further. 6√50 can be simplified to this: 6√(25 * 2) -->you can take the square root of 25. 6 * 5 √2 = 30√2 -->this is the simplified form. thanks can you help me with my

*asked on February 6, 2007* -
## BOBPURSLEY LOOK AT MY OTHER ?I REPLIED

yeah

*asked on January 28, 2007* -
## more math

sqrt50/sqrt2 (sqrt50)/(sqrt2)*(sqrt2/sqrt2)= (sqrt50*sqrt2)/2 =sqrt100/2=10/2=5 Check my thinking. thanks... what does this equal: 3sqrt2+4sqrt2 3 times the square root of 2 PLUS 4 times the square root of 2. This would equal 7 times the square root of 2,

*asked on December 23, 2006* -
## Substitution Method

Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 x + y = -4 x - y = 2 In the second equation, x= y+2 Putting that in the first.. (y+2) + y= -4 subtract two from each side, then divide each side by two to get y. Then, put

*asked on October 16, 2006* -
## Algebra333333!!!

Choose the ordered pair that is a solution to the system of equations. 3x - y = 9 2x + y = 6 (3,0) (3,-18) (3,-1) (3,1) Once again add the two equations to get 5x = 15 Solve for x and substitute into either equation to find y.

*asked on October 14, 2006* -
## Algebra ??

What would be the missing piece of information given the following information: Find the equation of the line that passes through the points (2, 6) and (4, 10). y = 2x + ? a. 4 b. 2 c. 7 d. 5 OK. let's take this step by step. y = 2x + ? Remember the

*asked on October 14, 2006* -
## Help 5!!!

5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x - 6 6y = -x + 2 On the second equation, change it to read y= ...,. Divide both sides of that equation by 6 to get the desired result. how?? The

*asked on October 13, 2006* -
## physics

1. The ceiling of a classroom is 3.75m above the floor. A student tosses an apple vertically upward, releasing it 0.50 meters above the floor what is the maximum magnitude of the initial velocity that can be given to the apple if it is not to touch the

*asked on August 1, 2006* -
## Science ( physics )

A balloon is rising with a velocity of 4.9 m/sec releases an object from height of 96 m. a) How long after its release will the object reach the ground? b) what is the velocity of the object as it hits the ground? The object has in intial vertical

*asked on August 1, 2006* -
## beginning algebra

find 3 ordered pairs the satisfy the equation 2x + 10y = 25

*asked on October 19, 2016* -
## Geometry

A plant is picked at random. There is a 30% chance the plant was purchased this year. There is a 6% chance that the plant was purchased this year and will produce berries. What is the probability that the plant was purchased and will not produce berries?

*asked on August 27, 2015* -
## Geometry

There were 30 people. 9 visited the museum and zoo. 14 visited the zoo but not the museum, 5 visited the museum and not the zoo and 2 visited the zoo but not the museum. What is the probability that a person picked at random visited the museum and not the

*asked on August 27, 2015* -
## Algebra 2

(12xy)4

*asked on September 24, 2013* -
## Algebra 2

Write this expression in expanded form. 4(a-b)2

*asked on September 24, 2013* -
## arithmetic

Using math to fine 9:20 am to 5:05 pm

*asked on January 14, 2013* -
## Pre-Algebra I

Write in exponential notation... 95.214 how do I do this?

*asked on August 19, 2012* -
## Chemistry

Xylose, a sugar isolated from wood, has the empirical formula CH2O. If a 6.25 mole sample of xylose has a mass of 938.3 g, what is xylose's molecular formula?

*asked on April 23, 2012* -
## area an perimeter

a parallelogramhas an area of 4yd squared the height is 1yd find the base

*asked on September 25, 2011* -
## math

solve by the elimination method x+6y=12 -x+7y=1

*asked on July 25, 2011* -
## finite math

1. what are the mean and standard deviation for this distribution of weekly take-home pay amounts? 2. what percentage of the pay amounts lie within 1 standard deviations of the mean? 3. what percentage of the pay amounts lie within 2 standard deviations of

*asked on April 14, 2011* -
## finite math

kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores

*asked on April 14, 2011* -
## finite math

The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation of 0.4 ounces. a. what percentage of the boxes will weigh more than 16 ounces? b. what percentage of the boxes will weigh

*asked on April 14, 2011* -
## algebra

5ã-1/1024

*asked on March 27, 2011* -
## algebra

convert to decimal 8.93x10^7

*asked on March 27, 2011* -
## math

given an 8 foot by 10 foot wall how many 6 inch square tiles would be needed to cover the wall

*asked on March 1, 2011* -
## algebra

If I receive $6570 from the sale of my car and the sales person got a 10% commission, how much did my car sell for.

*asked on November 29, 2010* -
## math

Fill in the blank: gamma = 2(inverse tangent of e to the x) - pi/2 is the _______ of x.

*asked on November 4, 2008* -
## math

Fill in the blank: Gamma = 2(inverse tangent of e to the x) minus pi/2 is the _________ of x.

*asked on November 4, 2008* -
## Physics

What is the shortes possible time in which a bacterium could travel a distance of 8.4 cm across a Petri dish at a constant speed of 3.5mm/s?

*asked on August 31, 2008* -
## Math

What is a polynomial in x?

*asked on August 20, 2008* -
## Math (polynomials)

solve for x: and could you show me the step on how to do it? thank u! 1) 5.8 = .17x(sqaured)+.95x + 5.68 2) 5.8 = .09x(squared) + .01x (cubed) + 1.1x + 5.64

*asked on August 20, 2008* -
## math (radicals)

square root of 3 plus the cube root of 15

*asked on August 19, 2008* -
## math (radicals)

8^(-4/3) + 2^(-2) OVER 16^(-3/4) + 2^(-1)

*asked on August 19, 2008* -
## french

i need 10 french slang terms. but they need to be 10 slang terms that teens use . =]

*asked on February 5, 2008* -
## Thesis For History

My topic for History is,"French Troops refusing to fight in WWI." How can I make my thesis?

*asked on September 30, 2007* -
## Math!Please Help Me!

Solve the following quadratic by either factoring or using the quadratic formula: 6x2 - 5x = 6 6x^2 -5x -6 = 0 (3x+2)*(2x-3) = 0 Take it from there

*asked on June 29, 2007* -
## Math[more]

Directions:Subtract and simplify. Problem: m+9/(m+3)-(-4m-6)/(m+3) Choices: a.5 b.-3 c.-3(m-1)/(m+3) d.m-1/m+3 What I Think: I think it is letter d. (m+9)/(m+3)-(-4m-6)/(m+3) = (5m+15)/(m+3) =5(m+3)/(m+3) = ? Your answer is not correct

*asked on June 29, 2007* -
## Math23456

Problem:4x^2y^3 Choices: a.2nd degree b.3rd degree c.4th degree d.5th degree What I think:I think it is letter C. It is degree 3 in y. It is degree 2 in x. Normally, one would call this a degree equation , or a cubic equation.

*asked on June 29, 2007* -
## Math133

Diections:Add and Simplify Problem:x/3+(5x)/3 Choices: a.2x b.x c.5x^2/9 d.5x^2/3 What I think:I think it is letter A. yes, it is A. (6/3)x = 2x

*asked on June 29, 2007* -
## Math Help Please!!!

Solve the equation:(x+3)/-3=(x+3)(x-1) Divide both sides by (x+3), multipy both sides by -3. I Will be happy to critique your work. will it be x=-2? no. 1=-3(x-1) 1=-3x+3 -2=-3x x= 2/3 check that.

*asked on June 29, 2007* -
## BSHRM

1.how will you know that the food is safe to eat? 2.what are the factors involved in food safety? thank you :-) http://www.foodsafety.gov/

*asked on June 7, 2007* -
## BSHRM

I can't find any classification of food service operations. ;-) http://www.answers.com/classification classification = type = kind =)

*asked on June 7, 2007* -
## BSHRM

1.What are the different classification of food service operations? 2.What are the different types of food service system?

*asked on June 7, 2007* -
## Math Help

Directions:Solve and graph equation using words.Then include wether it is solid line or dotted,!@#$%^& to graph it,and which side shading is on. Problem:5x+3y>-6 and 27+x-6 and 2y+x-5/3 x-2 draw the dotted line y=-5/3x -2 Notice the equation says y above

*asked on June 5, 2007* -
## MATH HELP PLEASE

y

*asked on May 29, 2007* -
## Simplify Completley

x/(6)+ 11x/6 2x

*asked on May 6, 2007* -
## Math2

Directions:Solve and graph the inequalities using words. Problems: 4.-3x>-6 or x-52x-1 or -6>-2x-2

*asked on April 18, 2007* -
## Math1

Directions:Solve and graph the inequality using words. Problem: 1.)2x>-4 and x-42x+1 and -4x

*asked on April 18, 2007* -
## Research Paper

WHat do I do if I have a a source but I don't have the authors name and I have to put it in the paper...?understand.? Many internet sources don't list the author. You can use the URL and title of the site. oh ok thank you...so for example: blah blah

*asked on April 15, 2007* -
## Thesis Statement for Research Paper

I need a thesis statement for my research paper on The Place de la concorde.How can I do that? http://www.indiana.edu/~wts/pamphlets/thesis_statement.shtml http://www.unc.edu/depts/wcweb/handouts/thesis.html Above are two very good sites on how to write a

*asked on April 14, 2007* -
## Math2(Please help)

Directions:Solve and explain the inequality using words.Tell which wa shading goes. Problem: x+3=>2x+1 and -4x

*asked on April 10, 2007* -
## Math(please help)

Directions:Solve and explain the inequality using words.Tell which wa shading goes. Problem: 2x>-4 and x-4-4 x>-2 x-4

*asked on April 10, 2007* -
## Math2(PLease Help)

Directions:Solve the rational expression. Problem: 1/(x+3)+1/(x-3)=1/(x^2-9) get (x+3), (x-3), and (x^2-9) to the same denominator...

*asked on March 27, 2007* -
## Math(Please Help)

Problem: x/4 - 4/x = 0 Directions:Solve the rational expression. x = -4 x = 4

*asked on March 27, 2007* -
## Math Help Please

Solve and graph(using words)the inequalities.Then describe the graphs using words. Example:x>5andx

*asked on March 25, 2007* -
## Please Help[math]

*Describe your graphs using words. 2x > -6 and x - 4 < 3 You have to solve for x. x>= -3 and x

*asked on March 12, 2007* -
## Please Check my Journal for MacBeth

Running Journal: Macbeth (Act 1 Scene 1) Thunder and lightning; enter three Witches: In the play as a whole, people are tossed about by forces that they cannot control, and so it is in the opening scene. The witches, blown by the storms of nature and war,

*asked on March 5, 2007* -
## Math3(Please check)

Problem: (2x+1)/(x^2-16) - (x^2-6x-7)/x^2-11x+28 What I Got: -x^2-3x-3/x^2-16 correct RIGHTAMUNDO WLCM :)

*asked on March 5, 2007* -
## Math 2(Please Check)

Problem: (x+2)/2x^2+5x+2 + (x-3)/2x^2-5x-3 What I Got: 0 at x=0, one gets 2/2 + -3/-3 which is not zero. You messed up a sign, I suspect. you are right girl

*asked on March 5, 2007* -
## Math(Please Check)

Problem: 4x/(x+2)-8/(x-1) What I Got: 4x^2-4x-16/(x+2)(x+1) *I had to simplify the rational expression No. At x=0, it doesn't check. The starting problem gives 8, your answer gives -8. I suspect a sign error somewhere. Probably in the denominator, the x+1

*asked on March 5, 2007* -
## math444

x^2/x+3 - 5/x+3=0 *Please solve the rational equation Your non use of parenthesis is annoying and most confusing. I assume you meant x^2/(x+3) - 5/(x+3)=0 multiply both sides of the equation by x+3, and solve.

*asked on March 4, 2007* -
## math3333

y+2/y =1/y-5 *Please solve the rational equation I am not certain if the right term is 1/(y-5) or the right side is 1/y -5

*asked on March 4, 2007* -
## Math Help 222

x^2/x-4 - 7/x-4=0 *Please solve the rational expression. multipy both sides by (x-4) then you have x^2-7=0 x= +- sqrt 7

*asked on March 4, 2007* -
## please help math

x/3-2/3=1/x *Solve the rational below. I really need help. multiply both sides by x. x^2/3 -2x/3 = 1 multiply both sides by 3 subtract three from each side x^2 -2x -3=0 (x-3)(x+1)=0 Then either of the factors can be zero, or x=3 or x=-1

*asked on March 4, 2007* -
## Math 3 PLease Help

*Please solve the rational expression. x^2/x-4 - 7/x-4=0

*asked on March 4, 2007* -
## Math 2 pLEASE HELP

y+2/y=1/y-5 *Please solve the rational equation. Done the same way as the previous post.

*asked on March 4, 2007* -
## Math Help Please...

x/3-2/3=1/x *Solve the rational below. I really need help. Multiply through by 3x x^2 -2x = 3 And solve. I don't get it... can you explain it more.then I can help you Margie

*asked on March 4, 2007* -
## BobPursley3...another one..

Problem 3: 4x/(x+2) - 8/(x-1) What I did: Common denominator is: (x+2)(x-1) 4x(x-1)/(x+2)(x-1) - 8(x+2)/(x+2)(x-1) [4x(x-1) - 8(x+2)]/(x+2)(x-1) multiply the numerator out. 4x^2 -4x -8x-16 4x^2-12x-16 factor 4 out 4(x^2-3x-4) factor 4(x-4)(x+1) and that

*asked on March 4, 2007* -
## bobPursley2...the other one

Problem 2: (x+2)/(2x^2+5x+2) - (x-3)/(2x^2-5x-3) What I did: 2x^2+5x+2 factors are (2x+1)(x+2) 2x^2-5x-3 factors are (2x+1)(x-3) Then: (x+2)/(2x+1)(x+2) - (x-3)/(2x+1)x-3) So the common denominator is (2x+1)(x+2)(x-3) using that combine the fractions. I

*asked on March 4, 2007* -
## BobPursley..here it is:

Problem 1: (x-2)/(3x+4) - 6x/(x+1) What I did: Common denominator is: (3x+4)(x+1) (x-2)(x+1)/(3x+4)(x+1) - 6x(3x+4)/(x+1)(3x+4) [(x-2)(x+1) - 6x(3x+4)] / (x+1)(3x+4) (x^2 - x - 2 - 18x^2 - 24x) / (x+1)(3x+4) x^2 - 18x^2 = -17x^2 -x - 24x = -25x (-17x^2 -

*asked on March 4, 2007* -
## Bobpursley can you help me with my problems below?

I had problems from yesterday but I still don't get them can you help?do you want me to repost? repost: I cant find them.

*asked on March 4, 2007* -
## Math33333

Please help me! Problem: x+2 x-3 _________ - _________ 2x^2+5x+2 2x^2-5x-3 *Simplify the expression 2x^2+5x+2 =(x+2)(2x+1) 2x^2-5x-3 =(2x+1)(x-3) So x+2/(x+2)(2x+1) = 1/2x+1 x-3/(2x+1)(x-3) = 1/2x+1 Finally 1/2x+1 - 1/2x+1 = 0 Let's take a look at the

*asked on March 3, 2007* -
## Math2(Please Help)

4x 8 ___ - ______ x+2 x-1 *Simplify The Expression I'm going to assume your problem is this: 4x/(x+2) - 8/(x-1) Use a common denominator since the denominators are not the same. Common denominator is: (x+2)(x-1) Rewriting the problem, we have:

*asked on March 3, 2007* -
## Math(Please Help)

x-2 6x ____ - _____ 3x+4 x+1 *You are supposed to simplify the expresion.I really need help with this and some other problems.Please and Thank you.- Perhaps I could help but I can't make heads or tails of your posts. Try using parentheses (and / bar for

*asked on March 3, 2007* -
## "It Happened To Nancy'

How do you feel about what happened to Nancy? *My homework is to create a table showing what people felt about what Happene to nancy. Thank you for using the Jiskha Homework Help Forum. I answered this earlier but I see it didn't post. First of all, make a

*asked on March 1, 2007* -
## sports

um...wasn't it the colts? wo won the super bowl in football no lik i sed

*asked on March 1, 2007* -
## Math...PLease Help Me...

Problem: 6-3x 25 ---- * ---- 5 4x-8 *I have to multiply the expression and simplify it.Thanks for your help. The five goes into the twenty five, and you can factor out a three from the first term in the numerator, and a two from the second term in the

*asked on February 27, 2007* -
## More Math 2 See If You Can Help Me... :)

Problem: a^2-9 a^2-3a ----- * -------- a^2 a^2+a-12 Here Is What I Got: (a+3)3a ------- (a+4) *Please Check It.I think I did it wrong though.. =[ I'm going to assume your problem is this: (a^2-9)/a^2 * (a^2-3a)/(a^2+a-12) Note: I'm using * to mean

*asked on February 26, 2007* -
## PLease Help Me IN Math

Problem: 25-x^2 6 ------ * --- 12 5-x What I Got: 5-x --- 2 *Please Check My Work And Tell Me If I am Correct or wrong.If I am wrong please help me as much as possible.Thank you~ Wrong. When are you going to factor the 25-x^2 ? The 5-x then will divide

*asked on February 26, 2007* -
## Please Help Me Math

Find the sum and express in simplest form. Show all work: x^2 2x-15 ----- *------ x^2-9 x^2-9 *I don't get this at alll.Plz help me. I assume you are trying to add, since the problem says "find the sum" and express in simplest form. x^2/(x^2-9) +

*asked on February 24, 2007* -
## Math[Please Help]

Solve the inequality x > 6x - 10 and write a description of the graph. Show all work Subtracting x from both sides does not change the inequality sign direction. 0 > 5x - 10 Add 10 to both sides 5x < 10 Divide both sides by 5. x < 2.

*asked on February 24, 2007* -
## Math2[Please Check Again]

Problem: a^2-9 a^2-3a ----- * -------- a^2 a^2+a-12 What I Got: 3-3a ---- a-4 *Please Check My Work.* Nope. factor the denominator to a^2(a+4)(a-3) The last factor divides out in the numerattor (second term factors to a(a-3). The a in the numerator reduces

*asked on February 24, 2007* -
## Math[PLease Check]

Problem: 25-x^2 6 ------ * --- 12 5-x What I got: 5-x --- 2 *PLease Check My Work. No. Factor the 25-x^2 into two factors. Then the 5-x in the denominator divides out. So then is it: 5+x --- 2 yes. 12x12

*asked on February 24, 2007* -
## PLease Check My Work

3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4) *Please check them.- 3. (t-5)(t+5) / (t+4)(t-5) 4. 2((x-1)(x+2)) / 4((x+4)(x-1)) 5. (6-y) / (y+6)(y-4) i don't really understand

*asked on February 22, 2007* -
## Please Help (Math)

You have to simplify each expression: 1/R+1/T multiply the first term by t/t, and the second R/R You should then get... (T+R)/RT

*asked on February 21, 2007* -
## Please Check (Math2)

a^2-9 a^2-3a ----- * ------- a^2 a^2+a-12 *I got: 3-3a/4 I don't think so. factor the a^2-9, and the second numerator to a(a-3) Then the denominator factored is a^2*(a+4)(a-3) So wait... don't I have to first have to take out the repeated thingys.? I don't

*asked on February 21, 2007* -
## Math(Please Check Again)

25-x^2 6x^2 ------ * ------ 12 2x *I got: 5-x/2 No. Try again. Can you tell me what I did wrong please.? You have to factor the numerator, you should have two factors for the first, and one for the second. In the denominator, you will have 24 x. I think

*asked on February 21, 2007*

## Pages

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