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December 20, 2014

Posts by Jen


Total # Posts: 3,279

algebra
6000<x<10000
October 3, 2010

math
Correct.
October 3, 2010

gammar
I think they are both poorly written, but the second one is slightly better. The first one sounds as if an elementary school student wrote it.
October 3, 2010

Algebra
9.85 x 10^3
October 3, 2010

algabra 2
x+x-2+x+4=38 3x+2=38 3x=36 x=12 12, 10, 16
October 3, 2010

philosophy of religion
Explain thoroughly and elaborately what Martin Buber means by real atheism as the eclipse of God. - any help will do. i'm desperate. i'm having a hard time understanding this subject. you can just tell me what atheism is according to buber even not thoroughly and ...
October 3, 2010

science
Pangea.
October 2, 2010

math
5/2v-4=7/2v Subtract 5/2v from both sides. -4=v
October 2, 2010

Organic Chemistry
separation and purification scheme how would i begin this? we have a mixture of the following:50% benzoic acid, 40% benzoin, 10% dibromobenzene they give us 1M NaOH, 6M NaOH, 1M HCl, 6M HCl, 1M NaHCO3, saturated sodium chloride, diethyl ether, 95% ethanol, methanol, isopropyl ...
October 1, 2010

EARTH science
density=mass/volume
October 1, 2010

7th grade
5x-10=2x-7 Add 10 to both sides. 5x=2x+3 Subtract 2x from both sides. 3x=3 Divide both sides by 3. x=1 This way is the more common method although Emily did get the correct answer.
October 1, 2010

algebra
13, 14 are wrong..I'm not going to check anymore..If you need help (step by step) on one or two problems, please re-post. It seems that you are just guessing.
October 1, 2010

algebra
Welcome back, Whitney. I have to leave for work but I checked as many as I could. Hopefully someone else can check the rest or I can check the rest later. I checked up to 12. They are all right except 4, 6, 7, 12 (5 I'm not sure about).
October 1, 2010

geometry
Not enough information.
September 30, 2010

Math
__-__/__+__=50 Are you sure you have the number sentence right? You can't subtract any of those numbers and end up with that solution. You can do this though.. (50*2)/(10/5)=50
September 30, 2010

math need asap
-16y+5y=-11y, not -21y..I think that's your mistake
September 30, 2010

algbra
Need more information..
September 30, 2010

second grade
Definitely not 2nd grade..
September 30, 2010

college algebra
-14-(18-(-4) -14-(22)=?
September 30, 2010

math
3:7 red candy: total candy, etc.
September 30, 2010

math
3 x 5 =
September 30, 2010

math
(n+9)/3=14 Multiply both sides by 3. n+9=42..I'm sure you can finish from here.
September 30, 2010

math
Are you solving for x or y?
September 30, 2010

Math, Please help :/
30+.85n=2.25n I'm sure you know how to solve equations..
September 30, 2010

math
What three do you have?
September 30, 2010

math
A fraction cannot be simplified if it is already in lowest terms..there aren't any more reasons
September 30, 2010

spanish
ellos (them)
September 30, 2010

proper nouns
fill in blank with the correct proper noun 1.we finally decided to buy a _____________.(proper noun) 2. during ___________ there was very little to do around here.
September 30, 2010

math
41, 42, 43, 44, 45, 46, 47, 48, 49..which one fits both conditions?
September 30, 2010

math 5th grade
2 is a factor of both 20 and 30..can you think of anymore? I think there are two more.
September 30, 2010

math 5th grade
4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100 These are the multiples of 4 up to 100. What number fits all of the conditions of your problem? (I actually think I see two that work..)
September 30, 2010

vocab
which make sense? 1. how can you expect to succeed at your new job when you are( diffused, predisposed) to believe that it is " not right" for you? 2. an economy in which the marketplace is considered "open" is one in which competition is more or less (...
September 30, 2010

algebra
Check your other post, already answered. Please don't repost.
September 29, 2010

7th grade
I just want to see a simple formula to solve linear equations
September 29, 2010

7th grade
This is a homework help website. You just post the subject, instead of grade, and ask a specific question. For example, if you don't understand how to do a math problem, post "math" for subject, and then post the problem.
September 29, 2010

algebra
I think you set it up like this..not positive though: 4(8n+6)=2(13n+2)+30n-28
September 29, 2010

science
Correct.
September 29, 2010

math
I'm sorry anonymous! You're right, I'm wrong.
September 29, 2010

math
10^3= 10000 Put the decimal after the 10 and move it over 3 places. Do the rest that way.
September 29, 2010

Math
I'm not sure, sorry.
September 29, 2010

Math
48? It appears that the x's are counting by 2's, and the y's are counting by 10's (starting at 8).
September 29, 2010

algabra II
No, we do not have nor would we give answers.
September 29, 2010

Math
It's not a multiple choice question, Bridgett, it's a multiple part question. Heather, I'll do part a for you and then you can do the rest the same way. You are just substituting into the equation. 3x^2+2x-3 (make sure this is right, I think you had a typo) a) x=-2...
September 29, 2010

math
Yup, Bridgett is right.
September 29, 2010

math
2.5 x 10^2=__x10^3 2.5 x 10^2= 250 .25 x 10^3=250 The exponent tells us how many places to move the decimal. If the exponent is positive, move it to the right. If the exponent is negative, move it to the left.
September 29, 2010

science
How does the pH of rainwater vary throughout the United States in Texas, California , Pennsylvania Kansas , Massachusetts and, Washington ? thank you
September 29, 2010

math
1, 2, 3, 4 to make 7 (4+3)x(2-1) 13 (4x3)+(2-1) 17 and 39, I can't think of..keep playing around with the numbers.
September 29, 2010

Math
Is this 3x+23=7x? Or is there a sign between the 7 and x? If it's 3x+23=7x.. 23=4x 23/4=x
September 29, 2010

Algebra
You just found out what they have in common. All of the terms have at least an x^2, so you can take that out. All of the numbers can be divided by 2, as well, so your GCF is 2x^2.
September 29, 2010

Algebra help
(x-1)^2=sqrt6^2 Take the square root of both sides. x-1=sqrt6.. you have to know how to finish from here
September 29, 2010

MATH
4.8
September 28, 2010

5th grade math
I'm pretty sure she meant 3142, 6328, & 4743.
September 28, 2010

5th grade math
The first step is to add those numbers up. Let me know what you get and I'll tell you what to do from there.
September 28, 2010

algebra
r+s=10 2r+4s=27 Multiply the first equation by -2 to cancel the r's. -2r-2s=-20 2r+4s=27 2s=7 s=3.5 Put s back into either original equation to solve for r (the first one would be easier).
September 28, 2010

spanish
What are the man and the children like in the painting? Who is the woman, and what relationship is between her and the girls. Write a description of the three people.
September 28, 2010

college algebra
Please see your other post, and avoid re-posting the same question.
September 28, 2010

math
Correct.
September 28, 2010

Teachers Aide/Early Childhood Education and After-
I think 17 is A.
September 28, 2010

math
-8+-7=-15
September 28, 2010

english
Good job!
September 28, 2010

math
xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx 4 x 8 = 32 The first number always goes down and the second number always goes across because 4 x 8 = 32 means 4 groups of 8. You can use any symbol, not just X's.
September 28, 2010

math
Find the two closest squares to 61 which is 64 and 49, so you know it has to be between the whole numbers 8 and 7.
September 27, 2010

math
An elf has a staircase with 10 steps to climb. Each step it takes can cover either one stair or two stairs. In how many ways can the elf climb the stairs?
September 27, 2010

math
26x>90 solve for x, x would be rounded up to the nearest whole number
September 27, 2010

4th grade
x + y = 40 x = y + 12 Use substitution to plug the second equation into the first. y + y + 12 = 40 2y + 12 = 40 2y = 28 y= 14 Plug y = 14 back into either top equation, x = 26
September 27, 2010

math
Prime means the number cannot be divided by any other numbers besides itself and 1. Composite is when the number can be divided. Try using a calculator to see if those numbers are divisible, or use divisibility tricks if you know them.
September 27, 2010

math
evaluate the following when x=-3, if possible /x/=/-3/=3 -x^2=-3^2=9 -(1+x)=-(1-3)=--2=2
September 27, 2010

math probelm need serious help!!!
Please have patience. Sometimes responses could take more than a few minutes. 4x-(9-3x)= 8x-1 Distribute 4x-9+3x=8x-1 Combine like terms 7x-9=8x-1 Get the variables (letters) on one side and numbers on the other.. Add 9 to both sides. 7x=8x+8 Subtract 8x from both sides. -x=8 ...
September 26, 2010

algebra
2x+3y=8 Bob said to subtract 3y from each side: 2x=-3y+8 Then divide by 2.. x=(-3y+8)/2
September 26, 2010

Math
It's quickest to change them all into decimals, and then arrange them: 2/3=.67 repeating (.666666etc7) 3/5=.6 31/50=.62 67/100=.67
September 26, 2010

Teachers Aide/Language and other Barriers
I think it's B.
September 25, 2010

math
Order of operations says to do parenthesis first. 2(-5+2)-3(3-4)-5 2(-3)-3(-1)-5 -6+3-5 -3-5=-8
September 25, 2010

Math
Lay out sixteen cards: the Ace, Two, Three and Four of all four suits (hearts, clubs, diamonds, and spades). Two players alternately turn down a card and add it to the common score, and the player who makes the score 22, or forces his or her opponent to go beyond 22, wins. To ...
September 25, 2010

math
No
September 25, 2010

math
8-7(4)+8(2)-13 8-28+16-13= Put those numbers into a calculator to solve.
September 25, 2010

math
Try this by plugging in -3 wherever an x is. Look at your other post to see how I did that one, since they're similar.
September 25, 2010

algebra
You just want to get v by itself. p=mv Divide both sides by m p/m=v
September 25, 2010

algebra
Try this one. I helped you with two.
September 25, 2010

algebra
Try to do this one. I helped you with two. Post your answers if you want them checked.
September 25, 2010

algebra
First subtract b from both sides. y-b=mx Then divide both sides by m (y-b)/m=x
September 25, 2010

Science
What are your choices...?
September 25, 2010

English
and you can't say #3
September 25, 2010

math
1.13 x 10^6
September 24, 2010

algebra
Wouldn't it just be 16x+10,000=21x? Do you know how to go from here?
September 24, 2010

math
2^3-7(2)^2+8(2)-13 8-28+16-13=? Not -31
September 24, 2010

science
but #1 cant be true because that isnt the definition for model
September 24, 2010

science
for 1. it is a model 2. it says prediction number 3 says hypothesis-based is this all true
September 24, 2010

science
there isnt
September 24, 2010

science
i need help at these. thx 1.the statement, " all living things are made of cells" is an example of _______. 2. a controlled experiment helps to eliminate the effects of unwanted ________. 3. ________ science emphasizes inquiry and observation.
September 24, 2010

math
If this is a right angle why does Henry not use the pythagorean theorum? Since the distances are just the speeds (thanks to the 1 hour) wouldn't it be X^2 + (4x+200)^2 = 2050^2?
September 24, 2010

math
Is this 7 1/3-2 5/6 (seven and one third minus two and five sixths)? Make sure to include spaces next time. If so... 7 2/6-2 5/6= 6 8/6-2 5/6= 1 3/6= 1 1/2
September 24, 2010

Math
You need to take the middle term (which is 18), take half of it (9) and square it (81). You then add that number to both sides.
September 24, 2010

8th grade
-x-6=-5 Add 6 to both sides. -x=1 So that means that x=-1.
September 23, 2010

6th grade
3.75+4/8=7.75/8=.96875
September 23, 2010

reading
How much time did Goodall spend with the chimps each day? Why is this meaningful?
September 23, 2010

reading
What was Jane Goodall's strategy for getting close enough to the chimpanzees to observe them?
September 23, 2010

physics
ooh.. ok. thanks :)
September 23, 2010

physics
A 15 g lead bullet is tested by firing it into a fixed block of wood with a mass of 1.05 kg. The block and the embedded bullet together absorb all the heat generated. After thermal equilibrium has been reached, the system has a change in temperature measured as 0.020 oC. ...
September 23, 2010

6th grade
Area could be 2 x 24, 3 x 16, 4 x 12, 6 x 8 (and vice versa). Perimeter equals 2L+2W. If the area was 2 x 24, the perimter would be 2(2)+2(24)=4+48=52. Do this with the 3 x 16, 4 x 12, and 6 x 8, and see which has the smallest perimeter.
September 23, 2010

algebra
4r-28+3>5r+10-23 4r-25>5r-13 Add 25 to both sides. 4r>5r+12 Subtract 5r from both sides. -r>12 Divide by negative one, so you have to switch the sign. r<-12
September 23, 2010

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