# Homework Help: 1st Grade

**Math**

The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children?

*Monday, March 28, 2011 by MX*

**chemistry - help**

0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is equivalent to 34....

*Monday, March 28, 2011 by candy*

**7th grade math**

what is an equation?

*Sunday, March 27, 2011 by holiday*

**7th grade math**

what is an equation?

*Sunday, March 27, 2011 by holiday*

**7th grade math**

2x+7=4x+3 ? 3x+6=5x+1 ? 2n+6=8N+3 ? 6N+9=9n+6 ?

*Sunday, March 27, 2011 by holiday*

**3rd grade math**

16 1/2 x 33 = is it 792

*Sunday, March 27, 2011 by Sharon*

**grade nine polynomials**

(3/4) (1/-2) + (5/6) (-1/3)

*Sunday, March 27, 2011 by brooke*

**grade 9 polynomials**

7 (r+3s) - 2(2r -9s) I am having a hard time solving can anyone please help

*Sunday, March 27, 2011 by brooke*

**6th grade math**

s=5m find the area of square

*Monday, March 21, 2011 by Sally*

**english (for Sra) repost**

The Lady of Shalott I have two events and have to find the quotation. 1st event The handsome, dazzling figure of Sir Lancelot rides by in his shining armour. The Lady sees him in the mirror and can no longer bear her imprisonment. 2nd event The Lady floats down the river past ...

*Sunday, March 20, 2011 by george*

**Fractions-easy 5th grade**

Multiply and divide. 1) -2 4/11(-2) 2) 5 1/7 / 4 1/8

*Saturday, March 19, 2011 by Justin*

**Social Studies**

Have you ever noticed that the most important man in America every day when you are shopping, looking through your wallet, and even going to the bank? Well…the most important man in America is our 1st president George Washington, and he is on our one dollar bill and even the...

*Thursday, March 17, 2011 by S...*

**Social Studies**

Does the following, need any changes. I yes what are they: Have you ever noticed that the most important man in America every day when you are shopping, looking through your wallet, and even going to the bank? Well…the most important man in America is our 1st president ...

*Thursday, March 17, 2011 by S...*

**Second Grade Fractions**

4/6 of 18 is ?

*Thursday, March 17, 2011 by Rosie*

**5th grade math**

please show how to get the answer... w>2 d+6<15 s-1>4

*Wednesday, March 16, 2011 by casey*

**5th grade math**

please show how to get the answer... w>2 d+6<15 s-1>4

*Wednesday, March 16, 2011 by casey*

**5th grade math**

please show how to get the answer... w>2 d+6<15 s-1>4

*Wednesday, March 16, 2011 by casey*

**MATH**

A track meet awards 6, 5, 4, 3, 2 and 1 points for 1st, 2nd, 3rd, 4th, 5th and 6th places, respectively. Team A’s only two runners originally earned 6 points in the ﬁrst race with both runners ﬁnishing in the top 6, but then the winner of the ﬁrst race ...

*Wednesday, March 16, 2011 by ABC123DoReMi*

**English-writeacher**

Hey, I just wanted to let you know that I got the grade back for that english paper you helped me write a few weeks back...the movie analysis on A Walk to Remember. I got a B! : ) But I have a chance to revise it according to the teachers comments and turn it in for a better ...

*Tuesday, March 15, 2011 by y912f*

**4th grade math**

can u exsplain long division to me?

*Monday, March 14, 2011 by clinton*

**Physics * (Wht am I doing wrng? answ provided)**

A 6 kg block slides on a horizontal frictionless surface with a speed of 1.5 m/s . It is brought momentarily to rest when it hits a bumper that compresses a spring. The acceleration of gravity is 9.8 m/s2 .How much is the spring compressed if its force constant is 7 kN/m? ...

*Friday, March 11, 2011 by cr*

**Chemistry-help needed**

0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is equivalent to 34....

*Wednesday, March 9, 2011 by candy*

**5th grade math**

is 13/20 greater than 3/4

*Tuesday, March 8, 2011 by Olivia Hines*

**5th grade math**

3m=63

*Tuesday, March 8, 2011 by casey*

**math**

Girls are one-half of the fifth grade class.Two-tenths of these girls have red hair.Red haired girls are what fraction of the fifth grade class?

*Wednesday, March 2, 2011 by hamza*

**math 5TH GRADE**

does the pentagon shape right angle

*Wednesday, March 2, 2011 by arjel*

**8th grade science**

What is the difference between speed and velocity?

*Monday, February 28, 2011 by Kallie*

**helth**

i am in the 5th grade and need to know the function of heart and how to draw it

*Saturday, February 26, 2011 by mimi*

**Unix Script**

"Using "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if it exist. This file will collect last name, first name, and grade for 5 people. Use a while loop to get the information (last name, first name, and age) for 5 ...

*Saturday, February 26, 2011 by Tina*

**MATH Grade 12**

How do you sketch an equation like x+4=-2(y-3)^2 ???

*Thursday, February 24, 2011 by Anonymous*

**3rd grade math**

How do yu draw an array for the number 88

*Thursday, February 24, 2011 by Jim*

**French**

I have this chart thing made for french with all the months, and I basically have to list down holidays and stuff which occur in those months and that too in French. So this is what I have so far, and please add anything that I don't have. Thanks *I also have to give a ...

*Wednesday, February 23, 2011 by Ayu*

**Math**

What does I=prt mean in 7th grade verison?

*Tuesday, February 22, 2011 by Rebecca Broda*

**grade 2**

what is he probilty of rolling a dice and get a 5 if you rol it 5 time

*Friday, February 18, 2011 by eric*

**8th grade math**

-7x+7y=7 2x-2=-18 how many solutions does this system have ?

*Thursday, February 17, 2011 by Kassandra*

**8th grade science**

Why is water essential to life?

*Thursday, February 17, 2011 by Kallie*

**6th grade science fair project**

Each week up until fair time we have to turn in one aspect of our project. This week it deals with our conrol, dependent and independent variables and constants. I will tell you that I got my idea form sciencebuddies. My project is Ocean Currents: Modeling the 'Global Conveyor...

*Wednesday, February 16, 2011 by Reed*

**geometry**

The road rose at an 8 degree angle, what is the grade?

*Tuesday, February 15, 2011 by Tom*

**Homophones/ 8th grade English**

What is a homophone for racecourse?

*Tuesday, February 15, 2011 by Aimme J. Keller*

**Math**

Frank has a 65% chance of receiving an A grade in geology, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. I get: ...

*Saturday, February 12, 2011 by Rachal*

**Statistics - can someone check me**

Frank has a 65% chance of receiving an A grade in geology, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. P(geo ...

*Saturday, February 12, 2011 by Rachal*

**math**

im in the 5th grade and i need help is on metric measures and conversoins

*Wednesday, February 9, 2011 by brian*

**Physics**

A 1000kg car accelerates from 3m/s East to 24m/s East at a rate of 3m/s. If the force of friction is 500N West; how much ower must the car exert? If heat and mechanical losses make the car only 60% efficient, what total power must be exerted to accomplish the acceleration in ...

*Tuesday, February 8, 2011 by Shannon*

**english**

there is some unknown poet called M.T. Buckley whom seems to be known only to the the English teachers and himself. Wrote a poem called "Birthday" and some others like "Poem of Poems" that didn't make it into the whose who of Poets. Does anyone know about this poet. His(her) ...

*Monday, February 7, 2011 by janet*

**Math**

I need help with these three math question. 1st question. What is the additive inverse of 5 on the 12-hour clock? 2nd question. What is the equivalent number on the 12-hour clock. -22 the choices for this question is, 5 or 2 or 3 or 1. 3rd question. I need to find the additive...

*Saturday, February 5, 2011 by Kimberly*

**Pre-Calculus**

74. Road Grade When driving down a mountain road, you notice warning signs indicating that it is a "12% grade." This means that the slope of the road is -12/100. Approximate the amount of horizontal change in your position if you note from elevation markers that you have ...

*Thursday, February 3, 2011 by Sam*

**math**

what is a sixth grade division problem with the number 17 in it?

*Wednesday, February 2, 2011 by Alexa*

**math**

The third and seventh terms of an arithmetic sequence are 10 and 20. 1) What is the value of the 1st term? 2) What is the value of the 9th term? 3) What is the equation to find the nth term in the sequence? HELP!! PLEASE!!

*Wednesday, February 2, 2011 by Brittany*

**7th grade math**

21/8 divided by 5/6=? in simplest form

*Monday, January 31, 2011 by nick*

**geomertry**

what is radius and diameter in third grade math

*Sunday, January 30, 2011 by nea*

**6th grade math**

What is 4 divided by n is 1/2?

*Sunday, January 30, 2011 by Anna*

**6th grade math**

what is 1/4*1/2=4d?

*Sunday, January 30, 2011 by Sara*

**6th grade math**

How did you get c=1/5 when you have 5c=2/3 divided by 2/3?

*Sunday, January 30, 2011 by Anna*

**Statistics -Please help :/**

I'm having a problem with the entire Chi-square thing.. I do have answers to these but I'm not sure how to work them out.. If you could help that would be great! :) 1st part: A,B,C are schools. Is the choice of math programs followed independently by school? Write the ...

*Friday, January 28, 2011 by Jason*

**statistics**

I'm having a problem with the entire Chi-square thing.. I do have answers to these but I'm not sure how to work them out.. If you could help that would be great! :) 1st part: A,B,C are schools. Is the choice of math programs followed independently by school? Write the ...

*Friday, January 28, 2011 by John*

**6th grade math**

Is the answer to G - 2 2/5 = 5 4/5 G = 7 6/5 ?

*Sunday, January 23, 2011 by Suzanne*

**Math Grade 12 college**

250(1.03)^n=400 solve for n

*Sunday, January 23, 2011 by Alex*

**8th grade Science**

In ionic bonds, what is the answer to these? Li + P and Rb + As and Pb + F and Bc + N ??

*Wednesday, January 19, 2011 by Susan*

**Science**

I am in the third grade. Can u please explain to me what displacement is and how it is used. Thank you.

*Wednesday, January 19, 2011 by Yalitsa*

**advance algebra**

find three numbers such that the second is 6 less than 3 times the first , and the third is 2 more than 2/3 of the 2nd.The sum of the three numbers is 172. use x=1st number y=second number z= 3rd number please help...thanks a lot!!

*Wednesday, January 19, 2011 by A-D*

**Credit Cards**

the credit card company will: -charge interest on remaining bill -send u another bill -ur credit card will be cancelled -add montly fee If u don't pay ur entire balance each month. I chose 1st one, is it correct?

*Tuesday, January 18, 2011 by Anonymous*

**6th grade math**

What is the number of 5/6s in 3? Is the answer 18/ 5 ? If not, please explain.

*Saturday, January 15, 2011 by Suzanne*

**6th grade math**

How many 5/6's are in 1? Is the answer 6/5 ??

*Saturday, January 15, 2011 by Suzanne*

**Math**

the sum of the 4th term and the 5th term is 12.if the 4th term of the progression is 8, find the common ratio and the 1st term of the progression.

*Saturday, January 15, 2011 by Malek*

**4th grade**

i need help solveing crossword puzzle

*Thursday, January 13, 2011 by dk*

**11th grade math**

How do you do Absolute Value Functions with graphs?

*Thursday, January 13, 2011 by Elizabeth*

**Math/3rd grade**

If you forget the product of 9 and 9, what can you do to figure it out?

*Thursday, January 13, 2011 by Alexandra*

**9th grade algebra**

solve -5/6=2/3(3c+4)

*Tuesday, January 11, 2011 by james*

**9th grade algebra**

solve df + 10h=3 for h

*Tuesday, January 11, 2011 by james*

**6 grade math**

Dividing 22/7 / 5

*Monday, January 10, 2011 by Aaron*

**7th Grade**

Z+5/7=3 home work problem that was not taught in class?

*Sunday, January 9, 2011 by Carole*

**7th grade math**

6+x=2x-14. I'm not to sure how to solve this type of equation.

*Thursday, January 6, 2011 by Allison*

**HELP MATH**

lee looked at the results of an exam he had just given to his grade 2 math class. he saw that louise had a score of 95%. he also saw that the standard deviation for the test was 0. if arif was also in his grade 2 math class, what mark did arif get on the exam?

*Thursday, January 6, 2011 by Anonymous*

**Physcial Science**

How can I apply Newton's First and Second Law to walking? I'm thinking the 1st, is the muscles would apply an unblanced force to make us move? Second-if we're walking and the mass of our body is 130 lbs and we're accelerating at 4 miles per hour, then the force necessary to ...

*Wednesday, January 5, 2011 by Ray S*

**3rd grade social studies**

what is agora

*Tuesday, January 4, 2011 by megan*

**4th grade**

IF R X R X R = 27 AND R X B = 6 WHAT IS THE VALUE OF B X B X B

*Monday, January 3, 2011 by dk*

**5th grade math**

subtract 1/2 from 5/6

*Monday, January 3, 2011 by jill*

**4th grade**

if b x w = 24, b x b = 16 what is the value of w x w?

*Monday, January 3, 2011 by dk*

**law**

Over the past decade, some countries have shown high crime rates while other countries have lower crime rates. For example, the lowest homicide rates in 2000 existed in Saudi-Arabia and Japan, while France and Germany had the highest homicide rates. Their rates, however, were ...

*Sunday, January 2, 2011 by michelle*

**law**

What are some of the ways that organized crime impacts you and a community and/or city (of your choice) directly? (This element will account for 20% of your grade.) What are some of the ways that law enforcement agencies are working to reduce these types of organized crime in ...

*Sunday, January 2, 2011 by michelle*

**grade 9 science biology**

What happens to the available energy in an ecosystem?

*Wednesday, December 29, 2010 by peyton*

**5th grade**

divide 6358 by 100

*Monday, December 27, 2010 by chris*

**4th grade**

which point is located at 7/12 on the number line below?

*Sunday, December 26, 2010 by Anonymous*

**4th grade**

23x17 in expanded algorithm

*Monday, December 20, 2010 by jayline*

**5th grade**

what expression shows the factors of 27?

*Friday, December 17, 2010 by trent*

**5th grade**

what is the magnitude estimate for 78.6 divided by 6

*Thursday, December 16, 2010 by matt*

**9th grade science**

where are the cell and plasma membranes located

*Thursday, December 16, 2010 by Miranda*

**7th grade**

What are the two vegetation types of Ethiopian Highlands?

*Wednesday, December 15, 2010 by Autumn*

**12th grade**

C6H8O7 + 3NaOH --> NaC6H5O7 + 3H2O

*Tuesday, December 14, 2010 by ronald*

**12th grade**

C6H8O7 + 3NaOH --> NaC6H5O7 + 3H2O

*Tuesday, December 14, 2010 by ronald*

**7th grade**

how dose mitosis let you survive?

*Tuesday, December 14, 2010 by sherry*

**5th grade**

7 5/12 - 5 7/12

*Tuesday, December 14, 2010 by jessica*

**5th grade**

draw a line segment for 7/8 inches

*Tuesday, December 14, 2010 by nathan*

**Math 7th grade**

40/n = 28/22 what is n?

*Monday, December 13, 2010 by Ruben*

**6th grade**

Why did people consider Nerfertiti a goddess?

*Monday, December 13, 2010 by Anonymous*

**4th grade**

what is 27×19 in expanded algorithm?

*Monday, December 13, 2010 by samantha*

**11th grade**

20xsquared+40 x+15=0

*Monday, December 13, 2010 by bob*

**11th grade**

how far will 350 j raise a 7 kg mass

*Monday, December 13, 2010 by taylor*

**5th grade**

how old was Anne when she died

*Monday, December 13, 2010 by danaya*

**10th grade math help**

How do you solve? 3-3sinx-2cos^2(x) = 0

*Monday, December 13, 2010 by Sophie*