April 16, 2014

Homework Help: 8th Grade

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8th grade science
Adding water to the acid will dilute it, reducing the number of H+ ions per unit of solution. I hope this helps a little more. Thanks for asking.
Friday, March 27, 2009 at 11:56am

8th grade science
Could it be something is coming out of solution of the water? What happens if you examine the same water boiled out of a pan?
Thursday, March 26, 2009 at 7:08pm

8th grade
You may mean Long Island. Ellis Island is much smaller. Paumonauk is the Native American name for Long Island.
Monday, March 23, 2009 at 6:20pm

8th grade history project
How about a poster trying to entice workers to work in a new factory? Remember, that up to this time, most goods were produced in small home workshops.
Tuesday, March 17, 2009 at 9:18pm

Systems of Inequalities-8th Grade Algebra
I don't know how to do these things though. Is there like a step-by-step process in doing it ??
Thursday, March 12, 2009 at 11:40pm

Systems of Inequalities-8th Grade Algebra
the one "tilting" north : y ≥ x-3 AND y ≥ 9 - x the one "tilting" west: y ≤ 9 - x AND y ≥ x - 3 You try the rest.
Thursday, March 12, 2009 at 10:24pm

8th grade Social Studies
Wednesday, March 11, 2009 at 11:04am

8th grade history
I'm writing a research report on the very first stagecoaches. The information that I cannot find is: Who invented it who has improved it over the years how and where was it originally used If not used today, why is it not used, and what replaced it? Thank you SOOOOOO much ...
Sunday, March 8, 2009 at 4:48pm

Algebra: 8th Grade; Equation Check
With 64 instead of 63 you will get an integer answer, 12096/32 = 378. Do the math the same way. d/96 = d/64 - 2 is basically what I wrote, but rearranged and with your corrected 64 in place of the 63.
Sunday, March 8, 2009 at 3:37am

Algebra: 8th Grade (#1)
1) You had the wrong equation on the first one. It should be 192(t+3) = 960t, where t is the time the jet plane leaves. 2) Your equation is ok here, if r is the speed in still air
Sunday, March 8, 2009 at 12:51am

Algebra: 8th Grade; Equation Check
3) freight train's time = D/63 = D/96 + 2 D/63 - D/96 = 33 D /6048 = 2 D = 12096/33 = 366.55 miles
Sunday, March 8, 2009 at 12:45am

Science (atoms) 8th grade
covalent bonds form molecules. Ions usually form ions, in the solid form, crystals of regular arranged ions.
Tuesday, March 3, 2009 at 5:26pm

Science (atoms) 8th grade
What is the usual state of matter for covalent compounds? Ionic compounds? What is the smallest particle for each?
Tuesday, March 3, 2009 at 4:18pm

8th Grade Algebra
Substitute 21 -x for y in the first equation. 3x = 4(21-x) 7x = 84 x = 12 y = 21-x = 9
Monday, March 2, 2009 at 11:28pm

8th Grade Algebra- Answer Check
a times a + b times b =11 and a times b =3 what does a and b equals
Sunday, March 1, 2009 at 2:12pm

8th Grade Algebra
let x = number of true-false questions let y = number of essay questions x + y = 20 3x + 11 y = 100 Solve those two equations. I assume you know how. Substitution is one way.
Wednesday, February 25, 2009 at 10:58pm

8th Grade Algebra
intersect (solve) any two of them, then sub in that solution into the third. If it satisfies the third equation, then the solution is "common"
Tuesday, February 24, 2009 at 11:34pm

world war 1
world war 1: (1) how did the cuban fight for independence affect the United States? Give 2examples. (2) describe two problems faced by the builders of the panama canal. How was each problem solved?
Tuesday, February 24, 2009 at 7:57pm

Adv. Math
Kenya -- we have students posting upper level high school and college math. After this I suggest you use 8th grade math as your subject.
Thursday, February 19, 2009 at 9:35pm

8th Grade Math (Algebra1)
sorry i wish i could help ,but i am kind of confused about this kind of algebra
Thursday, February 19, 2009 at 9:14pm

8th grade Science
An unbalanced force can make an object speed up, slow down, change direction and also change its rate of rotation about its center of mass.
Thursday, February 19, 2009 at 7:32pm

8th grade science
an object that weighs 3N displaces 90mL of water which weighs 2.8N. What is the buoyant force on the object? idk how to solve this problem PLEASE HELP!! thanks
Wednesday, February 18, 2009 at 6:35pm

8th grade
what is the difference between a compressional wave with a large amplitude and one with a small amplitude
Monday, February 16, 2009 at 1:22pm

8th Grade Math (Algebra1) -Please Help ME!!-
Please Help me!!!! This is due tomorrow (our teacher gives us one night to do it) and I'm confused and I don't know what to do about it!
Tuesday, February 3, 2009 at 9:57pm

8th Grade Math (Algebra1)
Sorry but we never learned that kind of math I wished I could help you I read all the instructions I know math, but not that kind. I'm sorry.
Tuesday, February 3, 2009 at 9:34pm

8th grade
who was the man who won the presidential election in 1836 but then became hated in 1837!? 1)daniel webster 2)martin van buren or 3)william henry harrison!?
Monday, February 2, 2009 at 8:14pm

8th grade science
deer and dandolions are alike because the deer drops antlers and dandolions drop pedals
Thursday, January 29, 2009 at 4:34pm

8th grade Social Studies
what is the definition of social studies
Wednesday, January 28, 2009 at 11:13am

8th Grade Math
or y=a+bx it's essentially the same thing, just in a differnt, more current form. in this one, a=constant b=slope oh, slope is also your rise/run which is y/x
Sunday, January 25, 2009 at 10:21am

8th grade science
Or do you mean the colour? If we take the usual spectrum ROGBIV red (R) is at the low frequency end and violet(V) is at the highh frequency end.
Wednesday, January 21, 2009 at 10:04am

8th grade science
Light consists of particles on energy (quanta), the higher the frequency, the higher the energy. This is called Plancks Equation, after Max Planck. Energy=aConstant* frequency
Wednesday, January 21, 2009 at 10:02am

8th Grade Algebra: Answer Check #2
check # 7,9,14 #7 is way off, there should have been 3 terms. do those again.
Tuesday, January 20, 2009 at 11:27pm

8th grade pre algebra
Assign a value to t as long as that value keeps the statement true, then it is correct. t in this would be anything greater than -9 to solve it it would look like: t+6>-3 -6 -6 t>-9
Monday, January 19, 2009 at 8:39pm

8th Grade Algebra
I am talking about Radicals, not actaully calculating the square roots. My book says that the answer is 195 + 47*{5 I just don't get how they got that answer.
Monday, January 19, 2009 at 8:12pm

8th Grade Algebra
This would really be (5SQRT20)(8SQRT45) ROunded (22.4) (53.7) IM not sure if you have to mulitply these, but if you do.....this would be youe answers 1202.88 Hope this helps.
Monday, January 19, 2009 at 8:02pm

8th Grade Algebra-Answer Check
1. yes 2 yes 3 yes 4 yes You do not need to do a geometric series to check the answer. Just divide with a calculator.
Monday, January 19, 2009 at 3:18pm

Math 8th grade
A pen contained chickens and pigs. There were 28 legs and 9 heads. How many chickens were in the pen? I think the answers in 4. Is that right?
Thursday, January 15, 2009 at 5:18pm

Science (atoms) 8th grade
I have to go offline soon so please answer this soon! Thank you soo much!
Thursday, January 15, 2009 at 4:25pm

8th Grade Algebra:Radicals
{ this means means square root How do you solve these kind of radicals: 1. (5-{14)*(3-{2) 2. (4{2+2)*(3{3-1) Can someone show me how to do these correctly please ?
Wednesday, January 14, 2009 at 11:13pm

8th grade
i have a homework assignment i do not know how to do. i was out sick so i have not learned this. hear is the question......y varies directly as x. find the constant of variation and write an equation for the direct variation. question 1: y=15 when x=5
Wednesday, January 14, 2009 at 8:59pm

8th grade math
would i put 2800 over 10000, and put 70 over x? confused
Tuesday, January 13, 2009 at 6:09pm

8th Grade Algebra
The answer is sqrt5*(-2 +4) = 2 sqrt5 You could write it down in one step, but I used two.
Friday, January 9, 2009 at 1:01am

8th Grade Algebra
I missed the lesson for this unit. (=sqaure root sign How do you solve these step by step: - 2(5 + 4(5
Friday, January 9, 2009 at 12:37am

8th grade algebra
same slope?? y=-3x+7 y=3x+33 and what type equation? dependent consistant? independent? inconsistant?
Thursday, January 8, 2009 at 7:37pm

8th grade
hi everyday my teacher gives us a paragraph to fix: grammer ,spelling,commas,ex.and i always fail.I don't understand how fix a paragraph or my rough drafts can you help me !!!!
Thursday, January 8, 2009 at 4:46pm

8th grade math
ok, but how would you get that into a proportion. i get the rest of the question, just not how to put those # into a scale ratio
Monday, January 5, 2009 at 6:19pm

8th grade math
Hmm.. Since the radius is 3 times larger than P, its diameter should be 18. P's diameter should be 6. That might help you solve the problem.
Monday, January 5, 2009 at 5:59pm

8th grade math
it the radius of M is 3x the radius of P, then the area is 9x (remember area is proportional to radius squared). So, if P is 27, then M is 27*9
Monday, January 5, 2009 at 5:57pm

8th grade math
i thought hte scale ratio would be 3:1 because of the fact that the question says that the bigger circle is 3 times as big as the little one
Monday, January 5, 2009 at 5:54pm

8th grade
Surface ocean currents located at 40 degrees south latitude and 90 degrees west latitude generally flow toward the (1) northeast (2) southeast (3) southwest (4) west
Saturday, December 27, 2008 at 2:58pm

8th grade Physics
I don't quite get the formula "w=(fd)" i understand what to do once you get the data, but i can't seem to ever get the data from the six basic machines, and converting the measurement units. I really need help, please
Tuesday, December 16, 2008 at 10:26pm

8th grade math
an equation in slope-intercept form of the line ia parallel to the y-axis and has an x-intercept of 3
Monday, December 15, 2008 at 11:06pm

Damon,im in 8th grade math, and i don't really get what you are saying. because we haven't really talked about a scale ratio is. ill wait 'till you are done with sherri.
Sunday, December 14, 2008 at 3:23pm

8th grade math
Corbin's car payment is $289.This is $37 less than 1/3 of his monthly income.What is corbin's monthly income?
Saturday, December 13, 2008 at 7:58pm

8th grade math
Sue whants to by a new printer that costs $189.She has $125 saved.She has a job that pays $8.00 an hour.How many hours must she work to earn enough to buy the printer?
Saturday, December 13, 2008 at 7:10pm

8th grade
i absolutly love twilight and all the other books in the saga, and new moon has to do with like all of the stuff that bella has learned about edward and the volutri.
Thursday, December 11, 2008 at 9:01pm

8th grade
I haven't read that book, but the term "new moon" often refers to a new beginning or a new start in life.
Thursday, December 11, 2008 at 7:36pm

8th grade
what does "new moon" have to do with the book new moon
Thursday, December 11, 2008 at 6:29pm

8th grade math problem
There would be 5 dogs 6 cats and 7 squirrels. Add them together there is 18. And if you go any higher then there would be 21. So the greatest amount of dogs would be 5.
Thursday, December 11, 2008 at 4:55pm

8th grade
What do mean by "the answer"? Do you want an equation for y or for x? Since there are two unknowns and only one equation, one cannot say what the values of x and y are.
Wednesday, December 10, 2008 at 1:39am

Math 8th grade
That's an excellent idea. Or at least, they may be able to provide her with a syllabus for the next week or so. When I taught middle school, at the start of each unit I gave each student a syllabus, outlining the information covered and the homework for each day.
Tuesday, December 9, 2008 at 1:16pm

Math 8th grade
Sue, thanks for helping my daughter Alyssa she has ADD and she is struggling in school. She has a IEP but she seems to score low on test and quiz's would i be asking to much if i requested that her teachers give her a study guide a week in advance?
Monday, December 8, 2008 at 11:58pm

Math 8th grade
You could use this formula: Interest = principal * rate * time I = 35,000 * 0.107 * 8 Add the interest to the principal to get the total amount.
Monday, December 8, 2008 at 9:58pm

Math 8th grade
A bank loans a customer $35,000 for a period of 8 yrs. The simple interest rate of the loan is 10.7%.What is the total amount that the customer will need to pay the bank over the 8 yrs.
Monday, December 8, 2008 at 9:51pm

8th grade math
You first have to find the common denominator. What is the common denominator for these fractions?
Monday, December 8, 2008 at 6:17pm

8th grade tech
Thank you so much guys, Ms. Sue, I'm g oing to take it in he stuff I've copied from that site, I'll tell you tomorrow if its right. Lee
Monday, December 8, 2008 at 5:00pm

8th grade tech
Try typing in color chart in google instead of color chart...? If I find a link I'll post it.-MC
Monday, December 8, 2008 at 3:49pm

8th grade tech
I need to find out what a Information Colour chart is. I've checked on internet but I can't find. Could anyone help me I need 3-5 facts about it to. Thank you.
Monday, December 8, 2008 at 3:47pm

1st grade
What are you talking about i am an 8th grader and i don't know what the heck you are talking about and i am in honers.
Thursday, December 4, 2008 at 12:02am

8th grade science
what are the role of the electrons in ionic bonds,covalent bonds and metallic bonds?
Wednesday, December 3, 2008 at 6:43pm

8th Grade Algebra
Draw the squares to whatever size you want, but indicate the scale you are using (e.g., 1 inch = 10,000 miles). The square root of the area will give you the length of the sides, since area of any rectangle = length times width. I hope this helps. Thanks for asking.
Wednesday, December 3, 2008 at 10:58am

8th grade
What do you want to do? Factor and solve for x? Multiply by 3. 9x^2 - 1 = 0 (3x+1)(3x-1) = 0 Then set each factor = to zero and solve for x.
Tuesday, December 2, 2008 at 11:25pm

8th grade geometry
segment AC is congruent to segment AD by the ______ of the Isosceles Triangle Theorem. (8 letters, 5th=E, 7th=S) Please help!
Tuesday, December 2, 2008 at 10:43pm

8th Grade Algebra
Draw two squares of appropriate size to compare the areas of Alaska (591,004 miles squared) and Texas (266,807 miles squared). * I don't get how to set up and do this problem.
Tuesday, December 2, 2008 at 10:21pm

8th grade
A game between two of the competing teams from bordering states might well be called the "Kudzu Klash". The game between which teams would deserve this title? _______________vs.______________
Thursday, November 20, 2008 at 12:12am

8th Grade
If you purchased a new house and wanted new carpet and new furniture, you would probably get these items from the states of which two competing teams? ______________vs._______________
Thursday, November 20, 2008 at 12:10am

8th grade
A game between two of the competing teams from bordering states might well be called the "Kudzu Klash". The game between which teams would deserve this title?
Wednesday, November 19, 2008 at 11:44pm

8th grade science
explain that gravitational force is the dominant force determining motions in the solar system and in particular keeps the planets in orbit around the sun
Tuesday, November 18, 2008 at 9:58am

8th grade physical sience would have the same # of protons and electrons in its normal state, but an ion- the element gives up an ion and another element takes that ion...what is carbonate...carbon and what?
Monday, November 17, 2008 at 7:00pm

8th grade science
What kinds of ions do a sodium atom and a chlorine atom become when valenc electron is transferred from one to the other?
Monday, November 17, 2008 at 6:51pm

8th grade physical sience
what is the charge on carbonate ion? Compared to the number of protons, how many electrons does the carbonate ion have?
Monday, November 17, 2008 at 6:46pm

8th grade history
The Bill of Rights protects the individual's rights. What are your thoughts on this question? We'll be glad to comment on them.
Sunday, November 16, 2008 at 8:18pm

essay-for history
im in 8th grade and i need help with an essay about women's rights...i researched women's rights on google but they didnt give me anything. if you help me i will really appreciate it!
Sunday, November 16, 2008 at 10:20am

8th Grade Algebra1
My question is in the first line where was the speed of the roller coaster measured when going down? At the bottom? AT the middle? Where was the speed of the roller coaster measured going upwards? Saying it went down the first grade 8 times faster than going up is not very ...
Friday, November 7, 2008 at 7:12pm

Jishka help---again:P
I'm bored so can one of you oh so kind people give me a topic to write an essay on and then maybe i can turn it in later? please and thanks -MC (btw:8th grade level, if i havnt already mentioned thats what im in ^^)
Tuesday, November 4, 2008 at 6:12pm

8th grade science
thanks! and I took your advice on my short story (deeper ever deeper) and I got a 100 I really appreciate what you did and I strongly look up to your critisism. ty
Sunday, November 2, 2008 at 8:25pm

8th grade science
I need some websites for the answers to these questions: What is diffusion? What causes diffusion? Why is diffusion important to living organisms? Thanks, AMir
Sunday, November 2, 2008 at 8:15pm

8th grade pigskin georgraphy
Determine which state capital will be visited bty a team form a state capital.
Friday, October 31, 2008 at 3:46pm

8th grade
Not much to go on but I would guess perhaps silver oxide? Rust is iron oxide.
Thursday, October 30, 2008 at 10:50pm

8th Grade Algebra
Write the length of the line below as a sum. Then combine like terms. ]-----------[-------[ 3/4x 2/3x I don't get what they mean by length as a term.
Wednesday, October 29, 2008 at 8:43pm

Question:8th Grade Algebra
How do you get a variable term from one side of an equation onto the other side? Can I get an example please?
Tuesday, October 28, 2008 at 11:15pm

8th grade Social Studies
Did you know that every time you social, that you are really saying socalie? is this true cuz my teacher said it was on the board.....
Tuesday, October 28, 2008 at 7:16pm

8th grade
A'B'C' is the image of ABC after a dilitaion. AB=7, AC=10, A'B'=28, and B'C'=24. What is the scale factor of the dilitaion?
Monday, October 27, 2008 at 4:50pm

Science (8th grade)
in terms of chemical bonds anfd electrons, what kinds of changes occur between atoms when substances undergo chemical reactions?
Sunday, October 26, 2008 at 5:56pm

Science (8th grade)
How do cell phones work? I know they use radio waves, but how do they actually work??? Thanks :)
Wednesday, October 22, 2008 at 7:04pm

8th grade
divide both sides by 1.5 and you get 8x=200 then divide by 8 on both sides.
Tuesday, October 21, 2008 at 7:50pm

8th grade
I went to an unscramble a word site and came up with this "Zach's Word Unscrambler" Results The scrambled word you entered was "afsedrniru " ... Sorry, No Matches Were Found...
Wednesday, October 15, 2008 at 7:20pm

math 8th grade
the width of a rectangle is 2cm.the perimeter of the recangle is 16cm. what is the length of the rectangle?
Tuesday, October 14, 2008 at 9:05pm

8th grade
1.5(8x)=300 Multiply: 1.5 * 8x = 12x 12x = 300 x = ??
Tuesday, October 14, 2008 at 8:16pm

8th grade
equation 1.5(8x)=300 It tells me to simplify the left side of the equation and solve. Can you help?
Tuesday, October 14, 2008 at 8:12pm

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