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Homework Help: 7th Grade

7th grade math
-2(8-4)-8(-6-8)= im notsure how to do this can someone please explain how to do this and what the answer is, i keep coming up with 2 but that's not right. i need help!
Monday, May 16, 2011 by Anna

David is the 7th president of the club. How can I ask a question from this sentence,the answer of which is 7th?
Friday, May 6, 2011 by Anonymous

7th Grade Science, Plz help due tomorrow!!!!
What are tetrahymena thermophila's primary source of energy??
Sunday, May 1, 2011 by Samantha

7th grade math
find a solution method use backtracking to solve equation; 54=6 (4-7V) _______ 2 7b+1 =2 __________ 4 8(56+12 -1) =64 _____3______
Tuesday, March 29, 2011 by holiday

7th grade Math
Trying to figure out 19.4(x) = 306.52 (gotta find out what X is
Monday, March 21, 2011 by Kylie

7th grade honors math
Which equation represents an inverse variation? A.3x=2y B.2-2x+y=0 C.y squared= x D.xy=5 If you could tell me the anser then explain how you got it that would be awesome!
Monday, March 14, 2011 by Nora

There are 256 students in this outstanding 7th grade class. How many scoops of ice cream would have to be used in each cone in order to make a different cone for each person?
Sunday, March 6, 2011 by Tina

7th grade math/distributing property homework
I need help with the steps of one question: -8(n-2)+4(3-6n)= (-36). Trying to find out what 'n' is
Wednesday, February 23, 2011 by Emma

7th grade math
The volume of a cube is 343 mm2. What is the length of one side of the cube?
Wednesday, February 23, 2011 by Lauren

Geometry-7th grade
The diagonals of a rhombus ABCD intersect at point E. If the sides of BC is equal to x + 9 and side DC is equal to 5x-2, find x. How would I set this up-Please give me some direction
Monday, February 21, 2011 by BethAnne

7th grade math
Find the missing dimension for the three dimensional figure to the nearest tenth, given the volume and other dimensions L= 8m W=4.6m V=88mcubed
Sunday, February 20, 2011 by Anonymous

use the digits 1,2,3, and 4 to write a number in scientific notation that is close to .001 this was in a 7th grade algebra book... what? is this even possible without the use of 0?
Wednesday, February 9, 2011 by Tokey

need a science project for 7th grade using toy train.
Saturday, January 29, 2011 by mateo

7th grade math
what is te best numbers for the base of a trapezoid that has a aarea of 4 square units and a height of 1
Wednesday, January 26, 2011 by sam

Hi, Im In The 7th Grade And I Have To Do A Essay And I Don't Know A Real World Situation That Could Be Modeled By A Mathematical Function Table On Graph ??? Any Help ????
Wednesday, January 19, 2011 by Brittani

7th grade science
Please help me fill in the following: A windmill converts ________energy to _____energy.
Tuesday, January 18, 2011 by Alex

7th Grade Science
help me find the answer to this question for tomorrow... can you think of any examples from the real world where lowered genetic diversity is impacting a species' ability to survive?
Thursday, January 13, 2011 by school8er

I am doing pre algabra math and I am in 7th grade I need help to simplify the expression
Wednesday, January 12, 2011 by ashlyn

7th grade science
OK so i have to do a project on duchenne muscular dystrophy and I need one page notes about can someone please just give me a couple of quick notes on it? thank you!
Sunday, January 9, 2011 by SkaterGirl

7th grade math
500 divided by 100 explain the decimal movement when dividing by 100.
Thursday, January 6, 2011 by nick

7th grade science
A woman with normal color vision has a colorblind daughter. What are the genotypes and phenotypes of BOTH parents?
Wednesday, January 5, 2011 by SkaterGirl

7th grade science
What is an example from the real world where lowered genetic diversity is impacting a species' ability to survive?
Tuesday, January 4, 2011 by SkaterGirl

7th grade
what is the volume of a cylinder of a diameter 10cm and a height of 10cm
Thursday, December 16, 2010 by Anonymous

7th Grade Math-Exponents
I don't understand this at all! Please help! Find the units digit for 7^197 without using a calculator. Explain how you found your answer.
Thursday, December 16, 2010 by Amber

7th grade
how do you find the range of a math problem if you have all even numbers?
Wednesday, December 15, 2010 by jenny

7th grade
500 words on (how) to write about the law of april 6th 1830?help
Sunday, December 12, 2010 by james

7th grade
a rectangular block measures 2cm * 1.5cm *1cm .the mass of the object is 31.5 grams .what is its density ?
Wednesday, December 8, 2010 by Anonymous

7th grade
i need help in Math with Fractions can i have some pointer to remember it. P.s. Thank you guys if u can help
Tuesday, December 7, 2010 by Mj

7th grade
how do you convert 35ibs per minutes to ibs per hour?
Monday, December 6, 2010 by sara

Find the area of each figure with the given dimensions Trapeziod: b1 = 6,b2=10, h=5 Trapeziod: b1= 4.5, b2= 8, h=6.7 I wasn't in school the day we studied this, and i am only in 7th grade!
Thursday, December 2, 2010 by Danielle

7th grade Science
will an object with a density of 0.79g/mL float, sink, or remain suspended in water
Wednesday, December 1, 2010 by Aaliyah

Science (6th grade, but actual 7th grade paper)
We are learning about potential and kinetic energy. There are two ramps. One is short and the other is long. The long one is labeled A, and the short one is labeled B. On which one would a marble go the farthest after touching the ground?
Tuesday, November 30, 2010 by Needs Help

7th grade math
a moving van's load changes from 1000 pounds to 800 pounds after delivering an appliance. What is the percent of decrease
Sunday, November 28, 2010 by math

7th grade math
SA=2pi(4 squared) + 2pi (4)(20)
Friday, November 26, 2010 by Chris

7th grade Math
Find the next three numbers in this sequence and explain the reasoning; 2/3, 2/5, 6/25, 18/125,...
Tuesday, November 16, 2010 by Rebekah

7th grade math
find a ratio equivalent to the ratio 7 over 9 then use the ratio to write a proportion
Thursday, November 11, 2010 by chris

7th grade Math
I did tips for math i need HELP!!
Wednesday, November 10, 2010 by Anonymous

7th grade science
A car with a forward force of 2,000 newtons drives a distance of 20 kilometers in minutes. How much power does it have?
Sunday, November 7, 2010 by Roland

Need ideas for a 7th grade research paper. I like gymnastics and dance. any ideas?
Wednesday, November 3, 2010 by Paige

7th grade
What is 7540 over 94710 in simplist form?? Please Help! I am terrible at math!
Tuesday, November 2, 2010 by Rella

7th grade
I have a science essay on the rainforest due tommorow. Need help fast!!!!
Thursday, October 28, 2010 by Sian

7th grade
determine your distance traveled and displacement if you walk 100m foward than 35m
Tuesday, October 19, 2010 by Gabriella

7th grade
What is the dimension of a rectangle whos perimeter is 42 inches and its area is 104 square inches? Explain.
Monday, October 18, 2010 by Leyley

7th grade
What is a good definition of mercantilism? I don't understand when all the definitions talk about economic systems of national wealth. Thank you!
Saturday, October 16, 2010 by Isabelle

7th grade
what is 344,000,000 in scientific notation?
Tuesday, October 12, 2010 by Anonymous

english 7th grade
I am to find the subject complement and linking verb in this sentence. At first we felt overwhelmed by the job ahead of us. Could you please help me understand , the examples in my book are not helping. Thank you
Tuesday, October 5, 2010 by spencer

7th grade math
Saturday, October 2, 2010 by Karan

7th grade
What is a 12 letter word for observations involving descriptions based on instrument measurment?
Wednesday, September 29, 2010 by Chris

Algebra 7th grade
My teacher has me working on something he calls "tinging fractions". What is this? What does it mean? How does it work?
Tuesday, September 21, 2010 by Lila

i am doing a book report and i havent done one since the 5th grade and now i am in 7th HELP!!!!!!!!!!!!!!!!!!!!!!!!!
Tuesday, September 21, 2010 by samantha

Social studys
Hi i need help on a 2-3 page essay. The question its based on is" explain and describe how geographers use thier tools to interpret grographic questions" I'm in 7th grade THANKS!! :)
Monday, September 20, 2010 by Gabrielle

7th grade
my teacher is making us do a current even outside of the us and i STILL can't find a good curren event
Friday, September 17, 2010 by samantha

7th grade
what is social health? what is mental/emotional health?
Tuesday, September 14, 2010 by mabel

7th grade
this is from homework work book . write each fraction or mixed numberas a decimal. use bar notation if the decimal is a repeating decimal
Monday, September 13, 2010 by naida

7th grade math
Write and simplify an expression for the perimeter of the triangle. side A)3x, side B) 5x-4 and side C)2x+5. Thank you!
Sunday, September 12, 2010 by CJ

7th grade Math
Write and simplify an expression for the perimeter of the rectangle. side A=x+6 Side B=4x-5. Thank you!
Sunday, September 12, 2010 by CJ

7th grade
Write and simplify an expression for the perimeter of the triangle. side A-4x+3, side B-6X and side C-3x-1. Thank you!
Sunday, September 12, 2010 by CJ

7th grade math
order these numbers from greatest to least mass 0.05kg,32g,and 430,000mg Thanks alot
Friday, September 10, 2010 by Melea

7th grade
Simplify each of the following expressions using the distributive property. need help please show work 5(x+y) -3(5+t)
Wednesday, September 8, 2010 by Henry

7th grade social studies
in the feudal system of Europe, lords owed their loyalty to the ???
Monday, August 23, 2010 by tim

7th grade
I am trying to unscramble ecrfenine in my science homework and cannot get an answer. My mom has read the whole chapter as well with me and we cannot find it. It has to do with scientific method.
Wednesday, August 18, 2010 by kaitlyn

7th grade
The diameter of a spider's thread is 1.0 x 10 -3 inch. Write the number in standard form.
Wednesday, August 18, 2010 by Kaylee

7th grade
rosa wants to buy a computer desk that originally cost $650. It has been marked down to a new price of $520. What is the percent off?
Monday, August 9, 2010 by Serena

7th grade
I need help with these math problems. a + 8 b + a ba b divide a 3b 48 divide b a - 3 a times 0 4a - b 5 + b - 3 b divide a = 8 4b - 30
Sunday, June 6, 2010 by Alisha

7th grade pre-algebra
How to write an expression for the perimeter of the polygon. simplify the expression
Thursday, May 13, 2010 by Colre

7th grade
only three words in standard English begin with the letters ' dw' and they are all common words. name two of them.
Wednesday, May 12, 2010 by taylor

7th grade
six coins are dropped on the floor. find the probability that they will all land heads up.
Thursday, May 6, 2010 by kevin

Pre-ap 7th grade math
Beads for sale: 12cents for 15. Write an equation relating the cost (c) and the number of beads (n) for the beads.
Wednesday, May 5, 2010 by Ken

7th grade
How can hardware,software,and the user of a computer work together to complete a task?
Monday, April 26, 2010 by Anonymous

7th grade english
Is there a free grammar check website that I don't have to sign up for or download?
Thursday, April 22, 2010 by john

what are some ideas for a compound machine for my 7th grade invention project that can be useful in people's daily lives
Sunday, April 18, 2010 by Danae

science, 7th,6th,8th,9th grade
In what three ways can machines make work easier?
Thursday, April 15, 2010 by Nyla Rose

7th grade
find the Volume of a cylinder with a radius of 14 in and a height of 21 in. Then Change Your Answer In Cubic Feet?
Monday, April 12, 2010 by hillary

7th grade
if you take apart 5x5x5 cube and build a pyramid with the same cubes, with each layer of the pyramid being a square and the top ending as a 1x1x1. How many tiers can you make?
Sunday, April 11, 2010 by tia

7th grade Science
Think critiacally how could 2 observers measure a different speed for the same moving object please answer as soon as possible thank you
Sunday, March 28, 2010 by me myself and i

7th grade Science
Determine your distance traveled if you walk 100m forward and then 35m backward
Sunday, March 28, 2010 by Mary

7th grade science
Determine your distance traveled and displacement if you walk 100m forward and then 35m backward please answer as soon as possible thank you
Sunday, March 28, 2010 by Mary

7th grade
If the time is 9:00 am in denver what time is it in los angelas ?
Wednesday, March 24, 2010 by jazmin

Math Simplification 7th grade
I'm skipping luch to do a project and I have the answers, just nt enough time to simplify! I'm short on time! 39/49=? 45/73=? 42/60=?
Wednesday, March 24, 2010 by Journey

7th grade social studies
what types of plans or previous forms of government can james madison call apon to dragt the constitution of the united states?
Saturday, March 20, 2010 by mary

7th Grade Math
Find the area of the circle described. Use pi= 22/7. Diameter= 1.4cm Please help!
Saturday, March 13, 2010 by Elizabeth

7th grade
Nikki read 896 pages of her book this week. How many pages is this per day?
Wednesday, March 10, 2010 by Anonymous

7th grade
how did some people hope to solve the problem of california's isolation from the rest of the country
Monday, March 8, 2010 by marcus

7th grade
I need general info on the Versailles Palace in France. I can't seem to find any sites that are easy to understand.
Thursday, March 4, 2010 by tyra

7th grade
what ideas can i get to persuade my class about why we should have longer days and time in school.
Wednesday, March 3, 2010 by angel flores

7th grade
if 60 grams of potassium chlorate is dissolved into 100cm3 of water at the temperature of 60 degrees celsius is the solution saturated unsaturated or supersaturated?
Friday, February 19, 2010 by sean

7th Grade Literacy
What are 3 IMPORTANT characteristics that a class president needs? Please answer!!
Wednesday, February 17, 2010 by Elizabeth

7th grade
I find myself doing homework and i get it done (well sometimes) but i feel like i should be doing something else what can i do to keep concentrated on the homework?
Tuesday, February 16, 2010 by Mikiya

7th grade Literacy
What are the characteristics that make a good class president? Please answer!!!
Monday, February 15, 2010 by Elizabeth

7th grade
What term was used to describe the trading of slaves and goods to and from three continents? Eight(8)letters
Thursday, February 11, 2010 by Lane

7th grade grammar
Hey Ms. Sue, thank you for the website. It helped Juliana a lot. She thinks she can figure this out now. Thank you VERY MUCH!!!
Monday, February 8, 2010 by Juliana's mom

7th grade science
what wedsite can i find pictures and info. on a arab , chinese and native american astronomer from the 1054.
Monday, February 8, 2010 by verone

7th Grade Math
Stephanie plays basketball at her school. Her freethrow rate is 40%. She made 18 freethrows. How many attempts did she make? Can you please explain to me how to solve this? Is there a formula?
Friday, January 29, 2010 by Thea

7th grade math
Scott deposits $1,000 in an account that earns 5% simple interest. What will the account be worth after two years?
Thursday, January 28, 2010 by Anonymous

7th grade science
what type of muscles make up the majority of mucsles in your body ? (please no websites only answers)
Monday, January 25, 2010 by mary

7th grade math
what is the ratio of a triangle that is 6cm on one side,and 10cm on the other side,and 8cm on the last?
Thursday, January 21, 2010 by eric

7th grade
A Pyrotechician is working on a new fourth of July rocket. He is using a highly reactive metal when burned. What can he use to lower the reaction rate????
Thursday, January 14, 2010 by Anomynous

7th grade
describe the cultural exchange between Native americans and europears (social studies)
Tuesday, January 12, 2010 by liame

7th grade
describe the cultural exchange between Native americans and europears (social studies)
Tuesday, January 12, 2010 by liame

7th grade
what is the perimeter of the 6 by 6cm square joined to an 8 by 8cm square
Monday, January 11, 2010 by Taylor

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