Monday
February 8, 2016

Homework Help: 8th Grade

8th grade science
On one of my tests they are asking me if Symboin pandora has a symbotic reletionshio with the Norway Lobster. In my lesson the answer is yes but with the NORWEIGAN lobster. Is this a typo or are the two lobsters the same lobster but with different names? I am soooo.... ...
Monday, February 7, 2011 by Erica

Math
Help me please to simplify 8 to 8th power x 8 negative 8th power
Sunday, February 6, 2011 by Tiffany

math
The question that have is to simplify and write the answer in exponential notation using positive exponents 2 to 4th power x 2 -2 These are my choices a 4 to the 8th power b 2 to the 8th power c 4 to the 2nd power d 2 to the 2nd power
Saturday, February 5, 2011 by Jimmy

8th grade science
I need help figuring out this on a food web. It goes from a flower to a butterfly to a frog to the bird to a coyote. Now I have to label them. I got them all however i do not know what the frog and bird is. HELP!! :-)
Tuesday, February 1, 2011 by Lina

8th grade science
Can a secondary consumer be eaten by another secondary consumer? Thanks! :-)
Tuesday, February 1, 2011 by Lina

8th grade Algebra
Marianna's rectangular garden is 15 yards long and 10 yards wide. She wants to stretch a wire for hanging lights from one corner of the garden to the opposite. About how long should the wire be?
Monday, January 31, 2011 by Elizabeth

8th grade Algebra
Sharon and her camping group hiked 6 miles due north, stopped for lunch, and then hiked 8 miles due west, stopping at ther campsite for the night. What is the straight line distance from their original starting place to the campsite?
Sunday, January 30, 2011 by Elizabeth

math
Ok, the problem says: a Middle school has 125 6th graders, 150 7th graders, and 100 8th graders. Which statement is NOT true? a. the ratio of 6th graders to 7th graders is 5 to 6. b. the ratio of 8th graders to 7th graders is 3:2. c. the ratio of 6th graders to students in all...
Tuesday, January 18, 2011 by panda

8th grade Math
Hi I need help with my math problem. It is: Name the function rule from the table given. Table- X= Y= -4 4 -2 2 0 0 answers: y = -x y = -4 y = 2x y = x I do not get how to solve this problem!
Thursday, January 13, 2011 by Lina

8th Grade Chemestry
Helping my child study. Are there any online guides that can help me teach how to predict the products of a reaction. i.e. _ Ag(NO3)+ _ CaCl2 yields Really want to be able to teach my child how to do this rather than have the answer. Thanks
Sunday, January 9, 2011 by Stephen

8th Grade Chemestry
Helping my child study. Are there any online guides that can help me teach how to predict the products of a reaction. i.e. _ Ag(NO3)+ _ CaCl2 yields Really want to be able to teach my child how to do this rather than have the answer. Thanks
Sunday, January 9, 2011 by Stephen

8th Grade Chemestry
Helping my child study. Are there any online guides that can help me teach how to predict the products of a reaction. i.e. _ Ag(NO3)+ _ CaCl2 yields Really want to be able to teach my child how to do this rather than have the answer. Thanks
Sunday, January 9, 2011 by Stephen

8th grade history
Can anyone help explain this? when the course of human events it becomes necessary for one people to dissolve the political bands which have connected them with another and to assume among the powers of earth the separte and equal stations to which the laws of nature and of ...
Tuesday, December 14, 2010 by Courtney

8th grade math
Can you please check my answer? A spherical balloon has a volume of 268 cubic cm. If more air is pumped in so that its radius is 3 times as long, what is its new volume? My answer: 2,412 cubic cm
Monday, December 13, 2010 by Elizabeth

8th grade math
Greta is designing a page for the yearbook and needs to know the area of her 8 in. x 10 in. picture after she crops it. If she makes the length and width of the picture 5/8 of the original, how does the area of the picture change?
Monday, December 13, 2010 by Elizabeth

8th grade
When a truck pulls a trailer, the trailer and truck accelerate forward even though the action and reaction forces are the same size but are going in opposite directions. Why don't these forces balance each other out?
Thursday, December 9, 2010 by Anonymous

8th grade
An alloy of metals is 25% copper .Another alloy is 50% copper. How much of each alloy should be used to make 1000grams of an alloy that is 45% copper?
Thursday, December 9, 2010 by Jake

8th grade math
Matt has twice as many quarters as dimes in his coin collection. If the dimes and quarters together total $9.00 how many of each kind of coin does he have?
Tuesday, December 7, 2010 by Anonymous

8th grade
draw a diagram showing the motion of a satellite around Earth. Draw the force vectors acting on the sattelite. Is the sattelite accelerating?
Wednesday, November 24, 2010 by jamaila

8th grade math
there are 3500 species of bees and more than 600,00 species of insects. how many insects are bees. write an inequlity.
Saturday, November 20, 2010 by Anonymous

Math
The 8th grade class is taking a field trip to a concert. Your bus averages 40 mph in the heavy traffic driving to the concert and 60 mph returning home. The total travel time is 2.5 hours. How far away is the concert? How long did it take to get to the concert?
Tuesday, November 16, 2010 by Lady

8th grade science
1.) How does reading across a periodic table compare and contrast with reading down a group on the periodic table?
Monday, November 15, 2010 by jess

8th grade science
1.) How does reading across a periodic table compare and contrast with reading down a group on the periodic table?
Monday, November 15, 2010 by jess

8th grade science
Peggy is runnig around the school track at a constant speed. The track has two straight stretches on the sides and two curved stretches at either end. Where on the track does Peggy experience balanced and unbalanced forces? Explain your answer.
Thursday, November 11, 2010 by Juan

8th grade science
Peggy is runnig around the school track at a constant speed. The track has two straight stretches on the sides and two curved stretches at either end. Where on the track does Peggy experience balanced and unbalanced forces? Explain your answer.
Thursday, November 11, 2010 by Juan

8th grade math
According to the U.S. Census Bureau, in 2009 men comprised an estimated 93.2% of the veterans in the United States. What is the number of women veterans in the United States in 2009? Express your answer to the nearest whole number.
Wednesday, November 10, 2010 by Anonymous

8th grade math
A company reported that it made a profit of 8% as a percentage of sales and that its sales revenue was $25,000. How much profit did the company make? my answer: $2,000
Monday, November 8, 2010 by Elizabeth

8th grade math
A company's cost of doing business in a recent month was $18,000. Their revenue on sales for that month was $27,000. What percent profit as a percentage of sales did the company earn? my answer: 33 1/3%
Monday, November 8, 2010 by Elizabeth

8th grade math
Can you please check my answer? Marcia wants to make muffins and needs 3/4 cup of a cup of sugar. She discovers, however,that she has only 2/3 of a cup of sugar. How much more sugar does she need? my answer: 1/12 of a cup
Monday, November 8, 2010 by Elizabeth

8th grade Math
Can you please check my answers? Wally ordered a pizza. He ordered 4/9 of the pizza with sausage, 1/5 of the pizza with extra cheese, and the rest of the pizza with bell peppers. How much of the pizza had bell peppers on it? My answer: 29/45 of a pizza
Monday, November 8, 2010 by Elizabeth

8th grade
A store that personalizes shirts chargers $20 for a shirt plus $.75 for each letter. Write an algebraic expression for the cost os "t" shirts using "n" letter each.
Friday, November 5, 2010 by jennifer

8th grade math
What is 25% of $20.00. What is the total cost of the item? I multiplied 20 x .25 and my answer was 5.00 Then I subtracted 5.00 from 20.00 making my final answer $15.00 for the item. Please tell me if this is correct.
Tuesday, November 2, 2010 by Lane

Math 8th grade algerbra
a cylinder has a radius of 3cm and a length of 10cm every dimention of the cylinder is multiplied by 3 to form a new cylinder how is the ratio of the volumes related the ratio of corresponding dimensions? how would i do this?
Wednesday, October 27, 2010 by Courtney

Language Arts 8th grade
Archaic-that which has ceased to be used except for special purposes as in poetry or church ritual some words like thou are archaic list as many words that you can think of that would be considered archaic. i cant think of anymore please help!
Wednesday, October 27, 2010 by Courtney

8th grade
Please help me how you get the answer. PLEASE I NEED HELP. A triangle sail has a perimeter of 25 m. Side a is 2 m shorter than twice side b, and side c is 3 m longer than side b. Find the length of each side. Thank you ver much for helping me
Wednesday, October 27, 2010 by Glenda

8th grade
when a truck pulls a trailer the trailer and truck accelerate forward even though the action and reaction forces are the same size but are in oppsoite direction. Why don't these forces balance each other?
Monday, October 25, 2010 by Kevin

8th grade
mr. macho ate 125 hotdogs over a five day peroid each day he ate seven more hotdogs than the previous day. how many hot dogs did he eat on the first day.
Sunday, October 24, 2010 by bill

8th grade math
The equation d=3.5t + 50 represents the distance in meters,d, that a cyclist is from his home after t seconds. Which pair of values represents a points on the graph of this equation? Explain your answer. (10,85) (0,0) (3,60.5)
Wednesday, October 20, 2010 by john

8th grade
Ryan left musuem and drove south. Gab left 3 hrs later driving 42 km/h to catch up to him. After 2 hrs gab finally caught up. find Ryan's averae speed?
Friday, October 15, 2010 by nancy

8th grade
Sam Squeeze has 10 quarts of a drink that is 60% organge juice. how much pure orange juice must he add to get a drink that is 75% orange juice?
Tuesday, September 28, 2010 by Anonymous

8th grade
Sam Squeeze has 10 quarts of a drink that is 60% organge juice. how much pure orange juice must he add to get a drink that is 75% orange juice?
Tuesday, September 28, 2010 by Anonymous

8th grade
Find the number of Calories in a grapefruit and an orange. (1) An orange has 15 more Calories than a grapefruit. (2) Twenty oranges and ten grapefruit have 1800 Calories.
Monday, September 27, 2010 by Jacqueline

8th grade math
my project is to complete the October calendar, using the following variables in algebric expression to represent each day in the month. Each expression must include all four variable using each variable exactly one. a=1 b=2 c=3 d=4
Monday, September 20, 2010 by Tee

8th grade
Dimensions of a paper cup. The volume of a paper cup, shaped like a circular cone is 30pie cubic centimeters. The radius of the top of the cup is 3 centimeters. What is teh height of the cup?
Wednesday, September 15, 2010 by Chris Molle

8th grade,math/probability
i really need help on this,and i need an answer quick as possible! >< what is the probability of picking a white sock and then a brown sock from a sock drawer,if it contains 10 whites,5 browns,and 8 multi-colored socks?
Tuesday, August 31, 2010 by Luuka

8th grade math
The area of Manhattan Island is 641, 000,000 square feet. According to legend, the Indians sold it to the Dutch for $24. Estimate the area that was purchased for one cent.
Thursday, August 26, 2010 by Shaun

8th grade math
a bank contains 35 nickels, dimes, and quarters. There are four more dimes than quarters and twice as many nickels as quarters. How many of each coins are in the bank?
Wednesday, August 25, 2010 by Toph

8th grade
A leaky faucet fills a 100 millimeter cup in 10 minutes. 1.how much water is wasted in a day?a week?a non leap year? 2.How long does it take to waste a kiloliter of water? (hint:1 kiloliter=1000000 milliliters)
Thursday, August 19, 2010 by timmy

8th grade
robert has a piece of twine 3/4 yards long. he needs a piece of twine that is 2/3 of this length. how long of a piee of twine does robert need?
Tuesday, August 17, 2010 by natalie

8th grade
Right triangle ABC is similar to triangle XYZ because angle B is congruent to angle Y. If angle C equals 27°,what is the measure of angle Z?
Wednesday, June 23, 2010 by Anonymous

8th grade
how to make a double line graph to show air/water temperatures.mon.air-92 water-68tues.air-94 water-69 wed.air-88 water=70,thurs. air=85 water=72 and friday air=96,water=72
Wednesday, June 9, 2010 by will

8th grade
okay, heres the deal tomorrows my english exam in which i need to write a DESCRIPTIVE paragraph. i reaaaallllllly need a BROAD topic to write about, anyone got any ideas?
Tuesday, June 8, 2010 by Amanda

Science- 8th grade
What type of sand/rock is Malibu Beach made of and where did that sand originate?? I've been searching this for a while, but the only results I've gotten were for Beach Hotels.
Thursday, June 3, 2010 by Ceci

algebra
A plumber needs 4 sections of pipe 2and 7/8 feet long. Can this be cut from a 12 ft. section? If so, how much pipe will be left over? If not, why not? I came up with yes, you will use 11 1/8th amount and have a section of 1 and 1/8th left. Is this correct?
Wednesday, May 26, 2010 by anonymous

English: Plagiarism, Clichés
Is a Cliché phrase considered Plagiarism? (the author is dead more than 390 years ago.) Is it okay to use it in a writing piece or poem? Should/will it be penalized or will you be given punishment if only used in 8th grade? Thanks
Sunday, May 23, 2010 by Christopher

Drug Abuse
My 8th grade daughter is doing a poster for her 4-H poster project on Hooked on fishing not on drugs. And her topic is How do drugs effect others? Can you help her with some ways that drugs effects a drug abuser's family and friends?
Sunday, May 16, 2010 by Momof8

english 8th grade PLEASE HELP!!!
How can you identify a verb/verb phrase, and how can you tell if it is present, past, future, pres. perf., past perf., future perf.?
Tuesday, May 4, 2010 by May

8th grade
Is -7*10^11 in scientific notation? If not, write it in scientific notation.
Wednesday, April 28, 2010 by Logan

8th grade Physics
Explain whether the photons emitted by a bright light bulb are more energetic than those emitted by a dim light bulb of the same color. How does the color of the light bulbs determine the amount of energy of the electromagnetic waves?
Tuesday, April 27, 2010 by Renee

Math distance rate 8th grade test tmr!
Two planes left Seattle at the same time, both traveling due east. One had the rate of 185 mi/h and the other had a rate of 225 mi/hr. After how many hours were they 220 miles apart?
Wednesday, March 24, 2010 by sky

8th grade science
a 10-liter sample of one type of crude oil has a mass of 8.20kg. What i the density? If this oil spilled on the ocean's surface, would it sink or float? explain answer in terms of density.
Wednesday, March 24, 2010 by sam

8th grade science
A glass of water is placed on a very sensitive scale and several antacids tablets are dropped into the water. The weight of the glass and its contents is less after the tablets dissolve than before the tablets dissolved. Tell how matter is conserved ? Please help! I couldn'...
Tuesday, March 16, 2010 by Michaela

Math - average grade
Does anyone know how to calculate average point grade? I have the following data: grade D - 2 students - 4,9 percent grade C - 6 students - 14,7 percent grade B - 12 students - 29,2 percent grade A - 21 students - 51,2 percent What is the average grade? This is NOT my homework...
Wednesday, February 17, 2010 by refy

8th grade Math
In a quadrilateral , angle CAB is divided into two comgruent angles by line AD. What is the measure, in degrees of angle DAB. Angle B and D are 90 degrees. angle C equals 45 degrees.
Tuesday, February 16, 2010 by Outcast

8th grade science
Please show me how to solve this problem. A person wearing a shoulder harness can survive a car crash if the acceleration is less that -300 m/s2. How far must the front end collapse if it crashes while going 101 km/hr? Thanks.
Sunday, February 14, 2010 by mike

8th grade algebra
the length of a rectangular garden is 5 feet longer than its width. The garden is surrounded by a 2-foot-wide-sidewalk. The sidewalk has an area of 76 square feet. Find the dimensions of the garden
Thursday, February 11, 2010 by val

8th Grade Algebra Confusion
Hi. I am starting a new section in Algebra, and I thought I understood it. But when I went to the back of my book to check the answers, they were way off. We are dividing and simplifying radical expressions and equations.
Wednesday, February 3, 2010 by Celeste

8th grade
a rabbit can climb one or two steps at a time on a ten step staircase, but he never goes back down. In how many different ways can the rabbit climb a flight of ten steps
Tuesday, January 26, 2010 by rob

8TH GRADE MATH
thank you so much, ms sue! may i ask another question? If 6 oz cost 3.25 20 oz cost 5.59 36 cost 6.59 how much would 12oz, 26 oz, 48 oz cost? Thank you so much! maribeth
Sunday, January 24, 2010 by maribeth

8th grade
how does placement of spacers between the eye bolt and magnets affect the strenght of the magnets pull on the eye bolt?
Saturday, January 23, 2010 by renee

8th grade
How do you evaluate (7 x 4 + 5 to the second power) divided by (8 - 1 + 7 to the second power)?
Monday, January 4, 2010 by Mary

8th grade
Ms Pecho currently owes $637.50 in simple interest on a loan of $2500 at an annual interest rate of 17%. How long has she had the loan. This is his problem and I have no clue how to help him but I do know the answer he came up with is 18.77. That seems wrong to me.
Thursday, December 31, 2009 by Rose

8th grade history
Name three reasons people left England to come and colonize the New World. They wanted riches, land, and place to start a new life. What happened to the people of Roanoke? They disappeared, and no one knows why or where they went. Are my answers right? I'm not very good at...
Sunday, December 13, 2009 by Sammi

8th grade
need help thank-you translate the verbal phrase into an inequality, then solve the inequality and graph your solution, the product of 6 and the difference of 6x and 3 is less than or equal to the product of -2 and the sum of 4 and 8x
Monday, December 7, 2009 by Zach

8th grade Algebra I (junior level math)
Hello, I am currently in Unit 4-1 (Ratio, and Proportions) and I don't understand how pairs of ratios could form proportions. Could someone give me step by step instructions? Thank You
Tuesday, December 1, 2009 by Jay

8th grade
I know the answer but how do i get my starting line ? Vancover recivers 3 times the amount of snow as toyko does together they recive 80 cm i can see that vancover will be 60 cm and toyko 20 cm but i do not know how to do it weird eh ?
Tuesday, December 1, 2009 by Scott

8th grade math
Hi i need one more example of this algebraic expression please. and explain please. Fig# Value 1 0 2 1 3 8 4 27 Math-Nick
Sunday, November 22, 2009 by Nick

8th grade
Hi my class is doing a unit on patterns with algebraic expressions. And i need to find a difficult expression Figure# Term value 1 8 2 27 3 64 4 125 what is the algebraic expression and how did u do it? thank you. Math-Nick
Sunday, November 22, 2009 by Nick

8th grade Science
Please help need ideas I am building a 3D model of a plant and animal cell. I need to show diffusion and osmosis movement within the cell.
Sunday, November 15, 2009 by Dorthea

11th grade
The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?
Friday, November 6, 2009 by stefanie coplin

8th grade History/English
I need to name three influential pilots in Life on the Mississippi by Mark Twain. I already have two: Mr. Brown Mr. Bixby I need one more. Anyone know one?? Thanks!
Sunday, November 1, 2009 by Owen Leigh

8th grade math
Fill in the blanks using 3 of these operation signs to complete each number sentence. * + - / (* means multiply) question 1: 12 ___6 ___4 ___ 2=24 question 2: (12 ___ 6) __ (4 ___ 2)=36
Wednesday, October 21, 2009 by Sarah

8th grade - science
i have the same problem as before,only 3 more questions about it. please help!! how precise is the ruler originally used to measure the string? explain. what is the length of the string to the nearest centimeter? what is the length of the string to the nearest tenth of a ...
Friday, October 2, 2009 by Michaela

8th grade math
Light travels approximately 5.87 X 10^12 miles in one year. This distance is called a light year. Suppose a star is 2 X 10^4 light years away. How many miles away is that star? Please help with detailed steps to solve problem. Thanks.
Wednesday, September 30, 2009 by kendall

8th grade math
Light travels approximately 5.87 X 10^12 miles in one year. This distance is called a light year. Suppose a star is 2 X 10^4 light years away. How many miles away is that star? Please help with detailed steps to solve problem. Thanks.
Tuesday, September 29, 2009 by Kendall

8th grade
A JetBlue flight from Jacksonville, FL to San Diego is flying at 500 km per hour west. It encounters a head wind that is moving at 300 km per hour in an easterly direction towards the east. What is the net velocity of the plane, include directions?
Wednesday, September 23, 2009 by enrique

8th grade
According to the CIA fact book there were 1018057384 internet users in 2005. The same source states that in 2005, Canada had 22 million internet users. What percentage of internet users in 2005 were canadian? Give the answer in standard, word, expanded form and scientific ...
Wednesday, September 16, 2009 by seema

8th grade Math
Adding Expressions with Square Roots 28x square root + 63x square root
Wednesday, September 16, 2009 by Tim

social studies
how can social studies affect me iam a 8th grade student
Monday, August 31, 2009 by neslen

8th grade Math
A fish tank 24 inches long, 16 inches wide, and 12 inches high is 3/4 full of water. By how many inches will the water level rise if you should add 576 cubic inches of water?
Monday, August 24, 2009 by Nicki

8th grade
I wanted to welcome you ASAP to our little family here in the States. It's high time we shook hands in person and not just across the sea. I'm pleased as punch about getting to know you all, and I for one will do my level best to sell you on America.
Sunday, July 19, 2009 by Bernice Smith

8th grade
Write a polynomial expression in simplest form that represents the difference between the area of the larger rectangle and the area of the smaller rectangle. Then find the difference when x=4.
Wednesday, June 3, 2009 by Julia

8th grade
What is the degree of -5a2b + 4a2 -2b +5 also I need help in finding the product of x + 5 and 3x -2. also what is the product of -4x2 and x3 + 2x2 -5x + 3....I need the solutions..Thank You for Your help
Tuesday, May 26, 2009 by Jay10

math 8th grade
im stuck on a question and i dont kno wat the answer shud b... Is the square root of 8 + the square root of 10 the same as the square root of 8+10? Use a grid and lengths of line segments to give a geometric argument. thx for ur help ;]
Monday, May 18, 2009 by Meherin

Algebra 1: 8th Grade
Simplify each expression. Write your answers using positive exponents. Check Answers Please: 1) 2^3*2^4 = 2^7 2)10^6/10^9 = 1/10^3 3)3^5*3^1 = 3^6 4)5^7*5^-4 = 5^3 5)9^3/9^-10 = 9^13 6) 4^11/4^8*4^-2 = 4^5 7) a^2*a^3 = a^5 8)b^-9/b^4 = 1/b^13 9)c^-5*c^-2 = 1/c^7 11)(5d^4)(8d^6...
Tuesday, April 28, 2009 by Joy

8th Grade Algebra
1) A firefighter aims a hose at a window 25 ft. above the ground. The equation h = -0.01d^2 + 1.06d + 5 models the path of the water, when h equals height in feet. Estimate, to the nearest foot, the horizontal distance d in feet btween the firefighter and the building. This ...
Monday, March 30, 2009 by Nancy

Systems of Inequalities-8th Grade Algebra
Graph the equation. The graph will divide the coordinate plane into four reqions. Write a system of inequalities that describe each region. Labe the region with these inequalities. 1) y = x - 3 y = 9 - x I already graphed it, I only need help on writing the systems of ...
Thursday, March 12, 2009 by Marta

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 by Coco

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 by brianna

8th Grade History
I am doing a poster on John Quincy Adams and the background needs to consist of something that describes something important in the president's lifetime. I would like to know any interesting or funny facts on John Quincy Adams. Thank you sooooo much for any help that i can...
Tuesday, February 17, 2009 by Nicole C.

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