Friday
November 28, 2014

Homework Help: 1st Grade

Post a New Question | Current Questions

Math
The table below shows the number of molecules in experiment B. Time(h) : 1st , 2nd , 3rd , 4th , 5th No. of molecules : 3 , 8 , 15 , 24, 35 (i) how many molecules will there be in nth hour? (ii) from which hour onwards would the no. of molecules be in experiment B?
Saturday, June 18, 2011 at 1:23am

chemistry - ionization energy(check + help)
I need help understanding by boron does not follow the ionization trend across the period is lower than the first two elements in the same period, where as it should be higher. has it got to do with the p block having an electron, which makes it easier to remove the electron ...
Wednesday, June 8, 2011 at 4:24am

math
a number story for grade 4?
Wednesday, June 8, 2011 at 3:19am

math grade 5
My sister in grade 5 needs help but i dunt exactly know how to do the answers myself, so if someone can help me out i can explain to her better. Thanks 3. You are using a tree diagram with 12 branches to show the possible outcome of a probability experiment What might the ...
Monday, June 6, 2011 at 8:55pm

MAT/116
I was just wandering if this was correct? 1. Your company is planning to spend no less than $80,000 and no more than $100,000 on a landscaping project, which will be used as a promotional park that promotes your toaster manufacturing company. Write an inequality with a ...
Monday, May 30, 2011 at 12:26am

MAT/116
I was just wandering if this was correct? 1. Your company is planning to spend no less than $80,000 and no more than $100,000 on a landscaping project, which will be used as a promotional park that promotes your toaster manufacturing company. Write an inequality with a ...
Sunday, May 29, 2011 at 11:55pm

math
Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 210 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...
Sunday, May 29, 2011 at 7:57pm

Chemistry
0.100 mol of SO2 and 0.100 mol of O2 are introduced in a flask of 1.52 L. When in equilibrium, 203 is found to be 0.0916 mol. Determine kp. 2S03(g) <-> 2SO(g) + O2(g) In order to solve this question 1st I made an ICE table and I got the values 2SO3 <-> 2SO + 02 I ....
Saturday, May 28, 2011 at 8:48pm

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 at 6:48pm

SCIENCE(PHYSICS)
A train travels 40 km/hr for 0.2 hr, 50km/hr for next 0.2hr and 60km/hr for next 0.4 hr.calculate the average speed of train. My Solution:-1st hr. distance=40 multiplied by 0.2=8km 2nd hr.= 50 multiplied by 0.2=10km 3rd hr. =60 multiplied by 0.4=24 km Average speed=10+24+8 ...
Wednesday, May 25, 2011 at 6:35am

math
i'm in 5th grade what is 9/26 with a remander
Monday, May 23, 2011 at 6:24pm

6th Grade Math
76 is what percent of 15??????????????????
Sunday, May 22, 2011 at 10:20am

criminal justice
Prepare a 6–8 slide PowerPoint presentation that addresses the following questions: •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 ...
Wednesday, May 18, 2011 at 1:03am

Maths 7th grade
How do you factorise?
Tuesday, May 17, 2011 at 1:05pm

Algebra
Could anybody help me with these two problems, or at least the 1st one? Thank you very much. „« The measure of the third angle of a triangle is 38 degrees more than the second angle. The measure of the first angle is two less than twice the second angle, Find the ...
Monday, May 16, 2011 at 1:39am

algebra
The value, v, of a shopkeepers inventory software program is given by v= -1/2t+5, where t is the number of years since the shopkeeper bought the program. What is the program worth four years after it is 1st purchased. Plot the point with the given t-value, 4. I have made ...
Friday, May 13, 2011 at 7:16pm

trig
1st-the reason i keep change my name because some of my friends are using my computer by their own name to asked questions. we are having a hard time solving each trig problems 2nd- if sin theta=0.6 and 90 degree <theta < 180 degree, find the exact value of sin 2 theta. ...
Sunday, May 8, 2011 at 5:16pm

physics
If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
Thursday, May 5, 2011 at 3:22am

Physics
If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
Wednesday, May 4, 2011 at 3:38am

8th grade math
2x-5y=14 3x+2y=40 what is the solve of xy ?
Tuesday, May 3, 2011 at 11:23pm

8th grade math
2x-5y=14 3x+2y=40 what is the solve of xy ?
Tuesday, May 3, 2011 at 11:23pm

5th grade math
how do you reduce 15/20 and 8/20?
Monday, May 2, 2011 at 1:58pm

8th grade math
3.5 X 10 ________ 7 x 10^-9
Sunday, May 1, 2011 at 11:57pm

Chemistry 20
Sorry, the 1st part to those 2 questions are: Hard water contains metal ions, most commonly calcium and magnesium ions. Some moderately hard water is found to contain 200ppm of calcium hydrogen carbonate.
Saturday, April 30, 2011 at 5:51pm

Health as a Social Institution
1) What do you think Canadians can learn from other cultures about the treatment of illnesses? 2) Define good health, illness, and disease in your own words and use examples.* Put yourself in someone's place living in a non-Western nation. How and why might that person ...
Thursday, April 28, 2011 at 7:03am

math
There are 283 students in Walley's school and 59 of them are in the sixth grade. What is the approximate percent of student at Walley's school who are in the sixth grade
Wednesday, April 20, 2011 at 9:23pm

math
An average score of 90 or above in a history class receives an A grade. You have scores of 90, 89, and 85 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. (Let N stand for your score on the fourth exam.)
Wednesday, April 20, 2011 at 9:22pm

MAth
I don't know how to begin this one-help Janie bought 2 pairs of identical jeans at a sale.she paid regular price for the 1st pair and paid half price forthe 2nd pair.if the the total cost was $45.00,what was the regular price of the jeans? 2x-1/2x=45 ??
Friday, April 15, 2011 at 2:33pm

grade nine math Polynomials
4s + 3 -s = -6
Wednesday, April 13, 2011 at 12:43pm

MATH
Im Struggling with this assignment here. Would like help ASAP. Consider following situation.. You are going to buy this laptop at $1294.00 plus HST. You can also pay $50 a month for 30 months with down payment of $100. Compare following 3 scenarios using spreadsheets to ...
Wednesday, April 6, 2011 at 9:24pm

Chemistry-help needed
Posted by candy on Monday, March 28, 2011 at 3:15pm. 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...
Tuesday, March 29, 2011 at 8:13am

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 at 8:19pm

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 at 8:09pm

math
Please Help!! 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 at 7:24pm

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 at 6:56pm

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 at 6:05pm

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 at 3:15pm

7th grade math
what is an equation?
Sunday, March 27, 2011 at 11:34pm

7th grade math
what is an equation?
Sunday, March 27, 2011 at 11:34pm

7th grade math
2x+7=4x+3 ? 3x+6=5x+1 ? 2n+6=8N+3 ? 6N+9=9n+6 ?
Sunday, March 27, 2011 at 7:42pm

3rd grade math
16 1/2 x 33 = is it 792
Sunday, March 27, 2011 at 5:39pm

grade nine polynomials
(3/4) (1/-2) + (5/6) (-1/3)
Sunday, March 27, 2011 at 3:46pm

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 at 6:01am

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 ...
Thursday, March 17, 2011 at 9:46pm

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 at 8:13pm

Second Grade Fractions
4/6 of 18 is ?
Thursday, March 17, 2011 at 12:21am

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 ...
Wednesday, March 16, 2011 at 2:18pm

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 at 8:29pm

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 at 5:26pm

pre algebra
my grade is 83.17 in pre algebra in college, but the final exam is worth 300 points. If I got a B or B- or a C on the final, what would my grade be overall?
Thursday, March 10, 2011 at 9:20pm

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 at 4:58pm

5th grade math
is 13/20 greater than 3/4
Tuesday, March 8, 2011 at 8:20pm

5th grade math
3m=63
Tuesday, March 8, 2011 at 5:26pm

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 at 7:54pm

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, ...
Saturday, February 26, 2011 at 9:43am

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 dont have. Thanks *I also have to give a ...
Wednesday, February 23, 2011 at 7:54pm

Chemistry-help needed
Can we use an ACS/AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?
Monday, February 21, 2011 at 5:15pm

Chemistry-pls help
Can we use an AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?
Thursday, February 17, 2011 at 2:39pm

Chemistry-help needed
Can we use an AR grade chemical for UV spectrometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?
Thursday, February 17, 2011 at 9:10am

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 ...
Wednesday, February 16, 2011 at 10:00am

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 at 9:05pm

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 at 5:33pm

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 at 11:57am

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 ...
Monday, February 7, 2011 at 8:17pm

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 at 9:10pm

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 ...
Thursday, February 3, 2011 at 4:48pm

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 at 3:52pm

6th grade math
What is 4 divided by n is 1/2?
Sunday, January 30, 2011 at 3:50pm

6th grade math
what is 1/4*1/2=4d?
Sunday, January 30, 2011 at 12:12pm

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 at 2:41am

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 at 2:19am

6th grade math
Is the answer to G - 2 2/5 = 5 4/5 G = 7 6/5 ?
Sunday, January 23, 2011 at 10:19pm

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 at 5:56am

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 dont pay ur entire balance each month. I chose 1st one, is it correct?
Tuesday, January 18, 2011 at 8:44pm

6th grade math
How many 5/6's are in 1? Is the answer 6/5 ??
Saturday, January 15, 2011 at 8:08pm

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 at 6:45am

9th grade alegbra
solve -5/6=2/3(3c+4)
Tuesday, January 11, 2011 at 10:09am

6 grade math
Dividing 22/7 / 5
Monday, January 10, 2011 at 7:23pm

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 at 3:12pm

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...
Wednesday, January 5, 2011 at 3:08pm

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 at 7:44pm

5th grade math
subtract 1/2 from 5/6
Monday, January 3, 2011 at 7:12pm

4th grade
if b x w = 24, b x b = 16 what is the value of w x w?
Monday, January 3, 2011 at 6:42pm

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 at 7:27pm

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 at 7:27pm

5th grade
7 5/12 - 5 7/12
Tuesday, December 14, 2010 at 5:38pm

Math 7th grade
40/n = 28/22 what is n?
Monday, December 13, 2010 at 11:20pm

4th grade
what is 27×19 in expanded algorithm?
Monday, December 13, 2010 at 8:23pm

11th grade
20xsquared+40 x+15=0
Monday, December 13, 2010 at 8:22pm

Math 8th grade
.02(2X-3)-0.03(3x(.2)=-.02
Sunday, December 12, 2010 at 8:06pm

fractions
Mr.shafier has been teaching school for 10 years.For 6 of those years he taught 8th grade.what fraction represents the time Mr.shafier has not been teaching 8th grade?I knoe the answere is 2 5ths. but how do i show work?HELP!!!!!!!!!!!!!!!
Sunday, December 12, 2010 at 2:39pm

8th grade
Solve 3r + 18 ¡Ü 6r
Saturday, December 11, 2010 at 1:01am

10th grade
If ab=6y & bc=8y What is BD In Terms Of Y.??
Friday, December 10, 2010 at 2:05pm

physicss
The question states: A 5.2 kg box is on a frictionless 36 degree slope and is connected via a massless string over a massless, frictionless pulley to a hanging 2.1 kg weight. What is the tension in the string if the 5.2 kg box is held in place, so that it cannot move? I summed...
Thursday, December 9, 2010 at 10:36pm

7th grade
how do i solve a+3/5=24/25
Thursday, December 9, 2010 at 7:47pm

6th grade
how do you do rate of change?
Wednesday, December 8, 2010 at 8:13pm

5th grade
What is the mode of these # 19,20,32,26
Wednesday, December 8, 2010 at 4:43pm

7th grade
2(2.5b-9) + 6b= -7 what is b
Wednesday, December 8, 2010 at 2:54pm

12th grade
How many moles are in 8.8*10 to the 34
Tuesday, December 7, 2010 at 6:25pm

10th grade
2x-y=-5 -2x-5y=11
Tuesday, December 7, 2010 at 1:47pm

Pages: <<Prev | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | Next>>

Post a New Question | Current Questions

Search
Members