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Homework Help: 8th Grade

Science-8th Grade
In metric, we use_______to measure volume. is the answer mass ??

8th grade
Can someone give me a written answer for this: 2.3w - 3.2 + 4.1 = -6

8th Grade Algebra1
The question is... Name the identity element for union. I really have no idea...thank you for any help!!!

8th grade home economics
what are the aims in cereal cookery and why do you have to eat so much fibre?

Algebra 1: 8th Grade
How many values of x make each statement true? Explain your reasoning. a) 3x+3=3(x+1) b) x-4-x=0 I don't get what the question is telling me to do. Help?

8th grade Social Studies
Which colony was the first to promote religious tolerance?

8th grade Social Studies
Why were slaves in high demand in the southern colonies?

8th grade Social Studies
Which colony was the first to promote religious tolerance

8th grade Science
The density of salt(sodium chloride) is 2.16g/mL. What is the volume of 216g of this solid?

History, 8th Grade
What states made up the middle colonies???

8th grade
metric conversion 240millimeters to centimeters, decimeters, meters, decameters, hectometers, kilometers

algebra
1/2x+6=1/3x Please help. my college grad mom can't help with my 8th grade math!

8th grade
unscramble the work riday it is a literature word

8th grade
what is the difference between a birthday cake and a buffalo

8th grade
ok ihave three problems for homework in algebra 1 honors Y+3=3+Y 6*1/2-Y=3*2 3/4+Y=0.75+Y

8th grade science
what is an example of suspension

Health 8th grade
What the two main forms of UTI ?

Science 8th grade
A cell digests proteins through a ___________ process? Where I can I get some information on this thanks

8th grade Science
How does the behavior of atoms and molecules differ between solids liquids and gasses?

8th grade astronamy- apparent magnetudes
whats the differences in magnitudes of the sun and sirius?

Science
How do speakers work I am in 8th grade and have to write a 5 pargaph essay

studying
wut should i study for a social studies unit test in the 8th grade????

8th Grade Science
Here is another one: "The interval between two events is the ______________."

Math
At one afterschool event, of the students were 8th graders and the rest were 7th graders. Of the students who were in 7th grade, the ratio of boys to girls was 3:5. What percent of all the students at the afterschool event were boys who are in the 7th grade? Help plz

Algebra, 8th Grade mathematics
I need help on this question. My aunt doesn't understand it so can you help me? 1+3+3^2+3^3+3^4+••••••+3^250​=? The "^" is for Square, cube and ect. It also includes X= 3^?-1 Can you help me please?

U.S history connections academy
does anyone know what pages to go to in the text book to find the answers for the 8th grade civics unit test? or the answers \_(-_-)_/ jk

Math( 7th grade advanced math so 8th grade math)
Salvador bought 3 pounds of oranges that cost x cents per pound, a cucumber for 59 cents, and 2 bananas for 35 cents. Write an expression in simplest form that represents the amount spent. I don't understand how you would write that into an equation. I don't think I should be ...

Math( 7th grade advanced math so 8th grade math)
Bacterial populations can grow to enormous numbers in a matter of a few hours with the right conditions. If a bacterial colony doubles size every 15 minutes, how many bacteria will be present after 1 hour if the colony began with 4 bacteria?

8th Grade Math
The value of y varies directly with x. When y = -12 1/2, x = 50. What is the value of y when x is 11 3/4, rounded to the nearest hundredths? Can someone please show me how to solve this problem?

math 8th grade
How do you prepare for a math test?? Please help me i don't understand the question.

English
Here is another approach .. Can someone tell me a book that you can read during the 8th grade unit? Example: The Maze Runner. What is another book we got to choose ?

English
Can someone give me a summary of one of the books they read for the 8th grade unit? Ex: The Mazerunner ? This will help me with my answer. Thank u

math
At the end of the 8th grade,Lin was 3.6 feet tall.Over the next two years he grew 1.2 feet tall. How tall was Lin at the end of the 10th grade

Geometry
Can someone help me with lesson 10 unit 4 geometry test? 8th grade 1. Name a pair of vertical angles 2 and 5 2 and 6 3 and 4 5 and 6 2 if M 1 = 43 what is M 4 53 43 37** 27 If M 1 = 55 what a m 5 55 40 35 25**

8th grade math - 2way tables
Can you help with this: An 8th grade class wen to to Disney World. Out of the 181 students who went to the park, 68 visited Epcot. There were a total of 127 students who visited magic kingdom and 50 of those also visited epcot. construct a two-way table to display the ...

8th grade maths
The dimensions of rectangle is 40*25if the breadth and length are increased by 15% what is their new area in percentage

8th grade Pre Algebra
Seriously stuck on this: "Find the LCM of n^3 × t^2 and n × t^4?" 1) n^4 × t^6 2) n^3 × t^6 3) n^3 × t^4 4) n × t^2 Can anyone help? URGENT! NEED THIS ANSWERED ASAP!! :( Thanks for your assistance in advance, NatR

8th grade algebra
If 1/3 is equivalent to 33 1/3%, what percent is equivalent to 2/3? A: 33 2/3% B: 150% C: 66 2/3% D: 65% I have no idea... Can someone explain? :\

math 8th grade
a black 8" tile was cut to surround a white 8" tile. what is the perimeter of the design?

8th grade algebra
I'm not sure how to finish simplifying this problem. 1. (3 x 10^-2) - (6.2 x 10^1) = (.003 x 10^1) - (6.2 x 10^1) = -6.197 x 10^1 (need to make positive 'tween 1 and 10)

8th grade math
Angle ABC=62° and angle ACB=66° what is the angle DAB?

8th Grade Science
How do adaptations enable organisms to reduce competion for food and other resources PLEASE ANSWER BY 4 (50 MINS)

8th Grade Pre-algebra
3. Select all of the numbers that are correctly written in scienctific notaton A)42 x 10^5 B) 1.1 x 10^4 C) 7.0 x 20^4 D) 6.01 x 10^-4 E) 18.0 x 10^3 4. Simply (2.0 x 10^4)(3.0 x 10^3) A)6.0 x 10^7 B) 6.0 x 10^12 C) 6.0 x 10^5 D) 6.0 x 10^43 5. (7.0 x 10^6)+(2.0 x 10^6) A)9.0 ...

8th grade pre-algebra
Can you check the following questions,please? Simplify 30. (-2y)^0/(3x^2)^-3 = 1/(3^-3)(x^-6) = 1/-27x^-6 = 27x^6 42. (-7x^5/14y^3)^3 = (-1^3)(x^15)/(2^3)(y^9) = (-1x^15)/8y^9

Physics
I am in 8th Grade G/T Science, and I had a question in an online test I didn't understand: An object is traveling at 8.1 m/s. Over the course of 5.3 seconds, it accelerates at a rate of 2.8 m/s2. What is its final velocity (in m/s)? Can you please help me answer this question...

language arts 8th grade
is, "are we flying" a verb phrase? or is, "to disneyland" a verb phrase? please help

math please help 8th grade
y = 2x + 7 The slopes are equal. The graph has a greater slope. *** The equation has a greater slope.*** none of the above an i right? (:

8th grade math
iPhone is designing a smart phone with a square screen. The area of the screen will be 169 cm with an exponent of 2. What is the height of the screen? I think the answer is 13. Am I correct.

Algebra 1 Ohio 8th grade standards
Got a problem here. Can someone explain how to write an equation in slope intercept form for the line that passes through the point (4,2) and is perpendicular to the graph y=1/2x+1.

7th grade math
Can you check these? 1. Olivia typed 2 pages in 15 minutes. Write an equation relating the number of minutes m to the number of pages typed. How long will it take her to type 10 pages at this rate? Ans: 15/2 = 7.5 = 7.5 * 10 = 75 minutes 2. If the ratio of Type O to non-Type O...

8th grade language arts
4.)Which word or phrase is closest in meaning to the word unanimous? a.)justifies b.)in agreement <--- c.)divided d.)not accurate

Algebra
Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade ...

History, Urgent
Settlements in America were not sponsored by: London Company Raleigh De Soto Dutch West India Company Its for a friend, 8th grade history

math
How to write math paragraph for k+8=5 and, w+12=5 8th grade

8th Grade math
a student says there can only be 360 different rays emanating from a point since there are only 360 degrees in a circle. Is this true? Why or Why not?

8th grade math
Maggie claims that to make the measure of an angle greater, you just extend the rays. How do you respond?

8th grade math
Henry claims that a line segment has a finite number of points because it has two endpoints. How do you respond?

8th grade math
juliet bought a pair of pants that normally cost $40 for a sale price of $24. what was the percent discount on the pants?

8th grade math
in a catalog a jacket was marked down from $75 to $48. what was the percent of discount on the jackets original price?

I may fail the 8th grade?
My home life has been crazy so I missed a lot of school and got bad grades. My anxiety is through the roof right now and i'm shaking a lot. all i need to do is get a 75% in math. and i just can't this is my biggest fear I can't see how life goes on after failing a grade. I ...

statistics
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

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!

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?

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...

8th grade science :(
How are the Heliocentric Model and the Geocentric Model Similar? List as many ways as you can.

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

8th Grade Physical Science
Calculate the density of a sample of gas with a mass of 30 g and volume of 7500 cm3.

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!!!! :)

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!!

Math
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...

Science
How do I calculate between the race of two automobiles in kilometer speed this is a 8th grade science question

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

8th grade science
Good hypothesis for does the human tongue have definite areas for certain tastes

Physical Science 8th grade
How does metallic bonding contribute to Luster, Heat conductivity, Ductability, and malleability?

8th Grade Science I need help!!!!
18. Explain how the three types of fossils (trace, body, and cast) are formed. Please help!!

8th grade math
He had dimes and quarters ... He has 8 more quarters than dimes equalling 5.50..., how do u solve ..

8th grade math
15 kids for every 100 adults .. How many adults are there!! ... He cant be half an adult ... So idk

Science 8R - help!
I need a definition for Lines of force (8th grade science regents level, ny)

Math - 8th grade
Express 18 million in scientific notation. I answered 1.8 x 10 to the 7th and was wrong. I don't understand why? You are supposed to move the decimal 7 places to get 18 million. What did I do wrong? Thank You.

8th Grade Math
Express 18 million in scientific notation. I answered 1.8 x 10 to the 7th and was wrong. I don't understand why? You are supposed to move the decimal 7 places to get 18 million. What did I do wrong? Thank You.

English 8R - help!!!!!
what's the definition for connotation is there a website that have a list of all 8th grade english vocab.

8th grade math
What is the area.in square yards of a rectangular Field that is 25 yards long and 20 yards wide.

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?

8TH GRADE MATH EXPRESSIONS
THE TOTAL COST FOR 4 PEOPLE TO RIDE THE BUS IF THE FARE OF .75 IS INCREASED BY D DOLLARS.

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?

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.

c++
Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function Letter_Grade () that ...

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

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

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

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.

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?

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.

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?

8th grade math
If the formula D(x,y) = (.7x,.7y) is applied to pre-image point (5, -7), what is the image point?

8th grade math
How do you turn these equation into a standard form? this is the standard form: ax+by=c here are the following equations: 2x = y + 1/2 y - 2 = 1/4x + 1 3y + 3 = 6x - 15 Please help and explain. Thank you.

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.

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!

math
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.

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.

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