November 29, 2015

Homework Help: 8th Grade

An 8th grade history teached studied the statistics for her mid-term exam. The average grade for the mid-term was 84 points, and the standard deviation was 8 points. The Z-score for a student who scores 90 on the exam is: 84-90/8= -0.75
Tuesday, June 3, 2014 by Jodi

Math 8th grade
In(x):2,10,___,__,__,-3,__,___,x Out(y:4,28,13,-17,10,_,2.5,148,3x-2 What's the answer !!!! Help!! ASAP!
Thursday, May 29, 2014 by Jennifer

8th grade science
If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called?
Thursday, May 1, 2014 by skiler

Math (7th grade)
I have a math question that I do not really understand how to answer is there someone who can walk me through it? In Pinecrest middle school there are 58 6th graders 76 7th graders, and 38 8th graders. The counsel is made up of 35 students who are chosen to represent all three...
Tuesday, December 17, 2013 by Shawna

8th grade science :(
How are the Heliocentric Model and the Geocentric Model Similar? List as many ways as you can.
Monday, December 9, 2013 by Ira

8th grade math
I am not sure if I did it correct, can you please check this answer for me, Ms.Sue? :) Writing equations in point-slope form: m:3, p:(-1, -2) (y-y1) = m(x-x1) y-(-2)=3(x-(-1)) y+2=3x+3 y+2-2=3x+3-2 y=3x+1
Sunday, October 27, 2013 by Lauren

Exponents and division 8th grade
x^4/x^16 i dont know 12^10/12^2 12^8 5n^14/20n^7 i dont know 6^8/6^8 1 a^9b^5/a^3b^15 i dont know /=divided by
Monday, October 7, 2013 by rockrboigurlluvr14

8th Grade Physical Science
Calculate the density of a sample of gas with a mass of 30 g and volume of 7500 cm3.
Tuesday, October 1, 2013 by kirt

8th Grade Math
ABCD is a parallelogram where AO and BO bisect angles A and angle B respectively. What is the measure of ∠AOB? What's the answer? Thanks!!!! :)
Saturday, August 10, 2013 by mathemagiacian

Math 8th Grade
I have a bunch of nickels and quarters worth $7.85 in my [pocket. How do I write a system of equation to solve and determine how many of each coin I have!!
Wednesday, June 12, 2013 by Blakey

Nicole drew a circle on the chalkboard that had a radius of 15 cm. Which is closest to the circumference in centimeters of the circle she drew on the board? A.30cm B.45cm C.24cm D.90cm D Which statement is not supported by the information in the graph? 6th graders 188 boys 192...
Tuesday, June 4, 2013 by Jerald

How do I calculate between the race of two automobiles in kilometer speed this is a 8th grade science question
Monday, April 22, 2013 by Alexsi

social studies 8th grade
Can you please help me find an accurate map of The Treaty of Fontainebleau 1762? I am trying to complete a project and want to make sure it is accurate
Saturday, April 13, 2013 by Reed

8th grade science
Good hypothesis for does the human tongue have definite areas for certain tastes
Sunday, February 3, 2013 by Marc

Physical Science 8th grade
How does metallic bonding contribute to Luster, Heat conductivity, Ductability, and malleability?
Tuesday, January 22, 2013 by Victoria

8th Grade Science I need help!!!!
18. Explain how the three types of fossils (trace, body, and cast) are formed. Please help!!
Wednesday, January 9, 2013 by April :)

8th grade math
15 kids for every 100 adults .. How many adults are there!! ... He cant be half an adult ... So idk
Monday, January 7, 2013 by Kill

Science 8R - help!
I need a definition for Lines of force (8th grade science regents level, ny)
Monday, December 17, 2012 by Laruen

English 8R - help!!!!!
what's the definition for connotation is there a website that have a list of all 8th grade english vocab.
Monday, November 19, 2012 by Laruen

8th grade math
What is the square yards of a rectangular Field that is 25 yards long and 20 yards wide.
Tuesday, November 13, 2012 by neka

8th Grade Math
Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What is the approximate length of each side of a block?
Tuesday, October 30, 2012 by Anonymous

Thursday, August 23, 2012 by CAMERON

9th grade algebra/Ms Sue
Okay Ms. Sue. I am in 8th grade but I am taking Algebra with 9th graders. I am very confused with my previous problem. I have asked my Dad but we are both getting confused. Now I have come up with 22. Is this my correct answer?
Wednesday, August 22, 2012 by Reed

Algebra 8th grade
The length of a rectangle is twice its width. If the area is 30 square units, find the dimensions of the rectangle.
Wednesday, August 22, 2012 by Anonymous

math 8th grade
if length and width of a 3in. x5 ln. photo are tripled what scale factor relates the area 3,9,12,27 i answered 27 is this correct i tried 9 but got no answer
Monday, May 14, 2012 by Anonymous

math 8th grade
22 points in game 1,18 points in game2, 20 in game 3 what was their mean score for these 3 games i answered 20 is that right
Monday, May 14, 2012 by Anonymous

8th grade math
length and width of a 3ln. x 5jn. photo are tripled what scale factor relates the areas choices are 3,9,12,27 i chose 3 because it said triple is that right
Monday, May 14, 2012 by Anonymous

Soanish-8th grade please check answer
I'm not sure what they're asking in this question- are they asking where you are when you vacation? ¿Dondé te ustedes cuando de vacaciones? Answer-Yo estoy en Florida.
Monday, May 14, 2012 by Anthony

8th grade math
Each side of a picute is enlarged by 125%. If the original area was 88 square inches, what is the area of the enlarged picture?
Thursday, April 12, 2012 by Piggy

Math 8th Grade
Which number serves as a counterexample to the statement below: All positive integers are divisible by 2 or 3 I need as much as possible.
Tuesday, April 10, 2012 by Lana Von Monroe

8th grade math
The dimensions of a rectangular prism are all whole numbers greater than 1". If the volume is 165 cu", and the height is 5", what is the perimeter of the base?
Tuesday, April 10, 2012 by Piggy

8th grade math
2x=y+1/2 how do you turn this equation into an equation that is ax+by=c? Please help and explain. Thank you.
Sunday, March 4, 2012 by saranghae12

8th grade math
I need someone to explain how to solve equations with two variables and tell me what the formula or equation is? Please help and explain. Thank you!
Thursday, March 1, 2012 by saranghae12

build equation Of the 15 players on the boys' soccer team, 2/5 are 8th graders. On the girls' soccer team,1/3 of 18 are 8th graders. How many 8th graders plaayed on the two teams.
Wednesday, February 22, 2012 by Anonymous

8th grade math
y=1/4x-1 1/2y=x-2 2x+3y=3 3y=5-2x 4x-y=3 4x=y=1 I don't understand this can someone please help me! This is Systems of Equations please work out the problem and explain it how to do it.
Thursday, February 16, 2012 by Austin

8th grade math
A magazine for teenagers ask its readers to write in with information about how they solve personal problems. describe the population and the sampling method Please help thanks!!
Thursday, January 12, 2012 by saranghae12

i need to learn my multiplication tables at least up to 9 and i have to do it fast because i'm in 8th grade and i don't know what they are. how do i learn them fast??
Thursday, December 29, 2011 by jordyn

i need to learn my multiplication tables at least up to 9 and i have to do it fast because i'm in 8th grade and i don't know what they are. how do i learn them fast??
Thursday, December 29, 2011 by jordyn

8th Grade Math
Question: a) Write in standard notation: 6.3 X 10 to the ninth power. b) Write in scientific notation: 0.00000047
Thursday, December 8, 2011 by ...

8th grade math
Wednesday, December 7, 2011 by stella

8th Grade/Art
My sister is gradating grade 8th this year and she wants to create her own 8th grade yearbook using a "marble notebook" she doesn't want to use a scrapbook she need cover ideas memorable quotes and funny ideas background ideas (when putting pictures she needs ...
Tuesday, November 8, 2011 by Laruen

Im 13 in the 8th grade and i need help on figurinmg out simularites between mitosis and meosis please help thanks :]
Monday, October 31, 2011 by lala

MATH 8TH GRADE Correction
Sorry I forgot to give directions for each problem. The lines represent that the numbers are fractions. Thank you. Multiply ã7/ã8 ~ ã24/ã49 = Divide ã45/ã81 = Simplify 7ã3/&...
Saturday, October 29, 2011 by PLEASE HELP

ã7/ã8 ~ ã24/ã49 = ã45 / ã81 = 7ã3 / ã5 = The lines between the numbers represent the numbers as being fractions.
Saturday, October 29, 2011 by PLEASE HELP

Science (8th grade) PLEASE HELP DUE TOMORROW!!
What are some living relatives of cyrtolite retrorsus? (a kind of gastropod)
Tuesday, October 25, 2011 by Samantha

What kind of awards do they give out @ a 7th grade/8th award ceremony???
Sunday, October 16, 2011 by Lara

8th grade math
Thursday, October 6, 2011 by nick c

8th grade History
i have no clue how to write a paragraph about the spanish conquistadors! i need help please
Friday, September 30, 2011 by JioVona

8th grade math
What is the perimeter of a rectangle with a length of 4 2/3 inches and a width of 3 1/3 inches
Monday, September 12, 2011 by Anonymous

8th grade math
I need to know how to work this math problem: 3n + (-7) -5n +1
Friday, September 9, 2011 by david

Could 8th grades books to read? I am more on a college/highschool reading level but i need the appropriateness for an 8th grader. thanks.
Friday, September 9, 2011 by gail

U.S history 8th grade
who was the founder of roanoke island? that is the last question on my U.S history worksheet!!!!!
Monday, September 5, 2011 by sammie

8th grade Math
" four less than twice a number is greater than six " Can someone please write that as an expression ?
Friday, June 10, 2011 by Maria

school in general
Hi i have a question im currently in 7th grade but i was held back a year in first do you think there would be any possible way to advance to 8th grade just curios I believe I have a wide enough knowledge span to pull it off but im just questioning the wheter or not it would ...
Friday, May 27, 2011 by JESSE

8th grade math
The two boxes are similar rectangular prisms. what is the height of box B. I figured out the volume of the smaller box first now what do I do?
Wednesday, May 4, 2011 by debbie

8th grade math
Suppose x and y are real numbers such that xy = 9 and x2y + xy2 + x + y = 100. What is the integer value of x2 + y2? (Target Round #6)
Wednesday, April 13, 2011 by Anonymous

math 8th grade
One of a pentagon's sides is 3 feet longer than the other. If the perimeter of the pentagon is 128m, how long is the longest side?
Thursday, March 31, 2011 by cody gilliam

math 8th grade
One of a pentagon's sides is 3 feet longer than the other. If the perimeter of the pentagon is 128m, how long is the longest side?
Thursday, March 31, 2011 by cody gilliam

8th grade math
If two numbers are relatively prime, what is their LCM? Explain your reasoning and give 2 examples supporting your answer.
Wednesday, March 30, 2011 by HELP

8th grade science
The loudness of sound can be measured in decibels. Do you think loudness is a vector or not? Can you explain why or why not.
Wednesday, March 23, 2011 by Kallie

8th Grade Science
I have to do a project and I have to have 9 or more physial and chemical properties of colloids and suspensions. I am soo stuck!!! Help!! Thanks!
Monday, February 28, 2011 by Niki

8th Grade Algebra
If Julie draws a card from a standard deck of well-shuffled playing cards, what is the probability that he draws either an ace or a heart?
Monday, February 14, 2011 by Elizabeth

8th Grade Math
I have an input output table, but I can't figure out the rule. Input: 1, 2, 5, 7, 10 Output:5, 15,?, ?, ?
Thursday, January 27, 2011 by Robin

8th grade Science
How do I show work for Si + Cl ?? The answer is SiCl with a little 4 down below the Cl. but I don't know how to show the work.
Wednesday, January 19, 2011 by Susan

8th grade American History
For my school assignment I am to create a Facebook for George Washington. Anyone have an idea of people I could put in his friends list?
Saturday, January 8, 2011 by Courtney

algebra 1 8th Grade
Find the constant of variation for the direct variation. F(x)=4.5x
Thursday, January 6, 2011 by shanequa

8th grade science
Hi! For a research project from my science class I'm having trouble trying to find an answer to the following problem. How does the Man-o-War care for their young? Thanks!
Wednesday, January 5, 2011 by Lina

8th grade science
HI! I need help with detremining how long my essay should be. It has to be from 4-5 minutes long. Thanks!
Wednesday, January 5, 2011 by Lina

8th grade
how do i know if all of the points are on the boundary line or they are all below it?
Thursday, December 16, 2010 by william clemons

8th grade
Please suggest a few topics to present in micro-soft power point
Tuesday, December 7, 2010 by Firdous

8th grade science
A 1 kg ball moving at 3 m/s strikes a 2 kg ball and stops. If the 2kg ball was initially at rest, find its top speed after the collision
Wednesday, December 1, 2010 by tressie

8th grade
I don't understand constant rate of change can you give me some examples. The graph I have shows the depth of the water in a vase over 8 days
Wednesday, December 1, 2010 by Abby

8th grade
Tom had scores of 78, 88, 94 and 79 on his first four science tests. What must he score on the next test to have an average of 88?
Monday, November 29, 2010 by Lisa

8th grade
advertising in arecent uear, outdoor advertisements amounted to 2.2% of all advertising dollars spent in the u.s. what fraction is this?
Sunday, November 21, 2010 by tong

8th grade
At Smart Middle School students are required to take 7 classes each grading period. At the end of each grading period a student is assigned a final grade (A, B, C, D or F) for each class for the grading period. A student’s overall grade point average for the grading ...
Monday, November 15, 2010 by Anonymous

8th grade math
Translate the phrase to an algebraic expression. Justin had $31 before spending q dollars on jeans. How much money remains? Thank you
Sunday, November 14, 2010 by chasity

8th grade math
is this expression correct? Question: translate 14 increased by y to an algebraic expression. my answer: 14 + y
Sunday, November 14, 2010 by chasity

8th grade math
seeking help. Justin had $31 before spending q dollars on jeans. how much money remains? (translate phrase to an algebraic expression)
Sunday, November 14, 2010 by chasity

8th grade math
7z-z can someone please check my answer for the above math question. My answer is 62 is this correct?
Saturday, November 13, 2010 by cindy

8th grade Math
Can you please check my answer? Solve for x. 7- 7/2x = -5 my answer: x = 42
Saturday, November 13, 2010 by Elizabeth

8th grade pre-algebra
how to use a grid and lenghts of line segments to give a geometric argument
Thursday, November 11, 2010 by nerdy

8th grade
did anyone read the barcode tattoo by suzanne weyn? if you did, can you help me find 2 hyperboles and the page numbers? the help is greatly appreciated. thank you
Thursday, November 11, 2010 by dana

8th grade
two children are fighting over a toy pull on it from opposite sides .the result is stand off.explain this term of the net force
Sunday, November 7, 2010 by juan

8th grade
i have a project in science and i can't seemed to find the explanation of an element's, silver, symbol. Thanks so much!!!!!!!!!!!!!!
Sunday, November 7, 2010 by Taavon 9

8th grade science
Describe the motion of a bicycle in a race in terms speed,velocity,acceleration.
Sunday, November 7, 2010 by cassie

8th grade
5[6-2(5-3>to the zero power)] Please help so confused answer = -20 or 100 idk please help !
Friday, November 5, 2010 by Lulu

8th grade
Consider the equation 3x+5y=k, what values could k so that the x-intercept and y- intercept on teh equations graph would both be integers. explain.
Thursday, November 4, 2010 by Monkeylover:)

8th grade
what is the area of a regular hexagon ABCDEF if AB= 2 units? express your answer in simplist form.
Wednesday, November 3, 2010 by hexagon help

8th grade
If there were 10 grams of iron and 20 grams of water what would the total amount be?
Tuesday, November 2, 2010 by Anonymous

8th Grade Math
Can somebody help me solve this problem? Simplify and evaluate the expression for y = 0, z = -1.5. -0.8z +0.005z(-0.001y - 3.1 + (-1.5z + 3))
Monday, November 1, 2010 by Elizabeth

8th grade
i have a project and its about genres and i would like to know what are five characteristics of realistic fiction? Thanks
Wednesday, October 27, 2010 by Taavon 8

8th grade
why do teachers give us esay projects and make it seem harder than it is when it really is not neccessary?
Monday, October 25, 2010 by alexis>3

I'm in 8th grade, im in algebra, and this is my question: x=a+b+c ----- ab solve for a. please help!!
Monday, October 25, 2010 by Maddison

8th grade
Who was influenced negatively by the southern code of behaviour in the autobiography of miss jane pittman, and how?
Friday, October 8, 2010 by Riya

math 8th grade
I need to combine like terms. Here are a few questions that I am having trouble with. -r - 10r n-4-9 -4+7(1-3m) Please help ! thank you.
Thursday, October 7, 2010 by Britta

8th grade
I cant Figure this out... Find each Unit Rate: Four pounds of apples cost $1.96 and Sal washed 5 cars in 50 mins
Monday, October 4, 2010 by May

8th Grade History; where is massachusetts bay located? what is the purpose of its discovery? advantage, and disadvantage. relationship with the local indian tribes. and 1 interesting fact. i cant find ANY of this. help?
Thursday, September 30, 2010 by Cheyenne

8th grade
Math I am a fraction in simplest form. I am greater than1/3 and less than 1/2. The sum of all my digitsb is 8. the difference between my numerator and denominator is 7. What fraction am I?
Thursday, September 30, 2010 by maria

If the Earth has so much mass, then how does it "float"? (My 8th grade Astronomy class trying to figure this out. -Lauren
Wednesday, September 29, 2010 by Lauren

8th grade Math
Put the following numbers in order from least to greatest. 0.0875, 7/8, 0.875%
Monday, September 27, 2010 by Elizabeth

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