Sunday
December 21, 2014

Homework Help: 10th Grade

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math
polk elementry school has three classes for each grade level, kindergarten through fifth grade. If there is an average of 27 students how many students attend polk elementry school?
Wednesday, September 10, 2008 at 5:33pm

2nd grade
what is the synonym for brown?
Tuesday, September 9, 2008 at 6:13pm

trig
in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks ...
Monday, September 8, 2008 at 9:13pm

trig.
in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks ...
Monday, September 8, 2008 at 8:24pm

6th grade
What was a mansion like in the 80's
Monday, September 8, 2008 at 7:43pm

6th grade math
A+B = A-B what are A and b
Sunday, September 7, 2008 at 10:20pm

5th grade
how many thousandths are in a hundredth?
Sunday, September 7, 2008 at 8:58pm

11th grade
what exactly is chemistry?
Thursday, September 4, 2008 at 5:33pm

9th grade
what is social health?
Thursday, September 4, 2008 at 3:25pm

9th grade
whatis 1=1
Tuesday, September 2, 2008 at 3:10pm

4th grade
what is 7 d in w
Friday, August 29, 2008 at 10:42am

math grade 12
solve for n if P(n,3)=2c(n,2), n{N
Thursday, August 28, 2008 at 8:03pm

5th grade
i need help with factors
Tuesday, August 26, 2008 at 8:25pm

Help Help
Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50 <= X and X < 70) output "your grade is" X output "you did OK" else if (70 <...
Wednesday, June 11, 2008 at 4:54pm

programming
Can You Please help me understand how to do this and what i have to do to solve the problem.... Please!! Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50...
Wednesday, June 11, 2008 at 4:53pm

grade 5 math
the grade 5 class decided to collect cans of food to donate to the food bank .After the 1st week ,they had collected 8 cans . The next week they collected 11 more . By the 3 rd week they had 31 cans Following this pattern how long will it take for them to reach there goal of ...
Sunday, May 4, 2008 at 9:47pm

6th Grade Math
I really don't know what to do on this question. If someone could start me off I could probably get the answer. Remember I am in 6th grade. Dani has a sack of 50 pens. Of these, 10 are black, 15 are blue, and the rest are red. If she grabs a handful of 5 pens, how many ...
Monday, April 21, 2008 at 7:19pm

math word problem
30 park visitors who played the same three games-the softball pitch, dart throw, and the ring toss. Every 5th person won at softball, every 10th person the dart throw, and every 15th person, the ring toss. How many of the 30 players won all three games?
Thursday, March 27, 2008 at 5:29pm

proofread
Hi, can someone proofread this for me. I'll appreciate it. Thanks in advance. The practicum site I selected is an elementary school. I will be assisting a first grade teacher during the semester. I will be helping her with her students and with other teacher ...
Sunday, February 3, 2008 at 11:34pm

Math
Can i please get your help on fractions and i am in the 7 th grade
Wednesday, January 30, 2008 at 5:49pm

7th grade geometry
pr/ac = ?/cb pr=6,ac=?, cb=15
Monday, January 28, 2008 at 6:52pm

Grade 10 MATH
17^115
Wednesday, December 5, 2007 at 7:56pm

essay please check writeacher
Describe the world you come from- for example, your family, community or school -- and tell us how your world has shaped your dreams and aspirations Being the first in my family to attend college is not so easy. There has never been anyone at home to help or to guide me. I did...
Thursday, November 29, 2007 at 12:57am

Chemistry
can anyone help me on my chemistry problem. i need a merck index to solve this. i have a PH of 10.7 and the nearest solution that is near to it is 10.32. The solution that is 10.32 is NaHCO3. i subtract both of them to get the ratio of log (HA)/(A-). i took that value to the ...
Thursday, October 18, 2007 at 8:41pm

algebra
Sam must have an average of 70 or more in his summer course to obtain a grade of C. His firs three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade.
Wednesday, October 10, 2007 at 12:50am

math
An instructor counts homework as 1/3 of the student's grade and the final exam to be 2/3 of the student's final grade. Going into the final exam a student has a homework grade of 48%. What range of scores on the final exam would put the student's final average ...
Sunday, September 30, 2007 at 8:08pm

Social Studies
How do you start a community? Please explain your question. Are you asking about how to start a town of people? Or a community of crayfish? Or a special interest community, such as a club or a church? We'll be glad to help you if you clarify your question. We are asking ...
Thursday, August 16, 2007 at 7:01pm

physics-please check
is this right?: when a form of energy changes from one form to another some energy may transfrm into a useful form, those useful form of energy is high grade energy.while the rest of the energy will always change to form we cannot use.which is called the low grade energy. if i...
Monday, May 14, 2007 at 4:46am

MATH!!!
To measure the length of a hiking trail, a worker uses a device with a 2-foot diameter wheel that counts the number of revolutions of wheel makes. If the device reads 1,100.5 revolutions at the end of the trail, how many miles long is the trail, to the nearest tenth of a mile...
Sunday, May 13, 2007 at 5:23pm

algebra
Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. write an inequality representing the score that sam must get on the last test to get a C grade http://www.jiskha.com/display.cgi?id=116​...
Tuesday, April 24, 2007 at 11:47pm

1st grade math please help!!!
8...
Tuesday, April 24, 2007 at 10:29pm

trig
it says solve for all real solutions, compute inverse functions to 4 sigfigs. cos^2x=3-5cosx Devon, what grade level are these questions from? I am having the same problems as with your 9:14 post. Please see my partial solution in the post to bobpursely at 10:54 Devon, I have ...
Monday, April 16, 2007 at 9:57pm

Social Studies
They can be 2-5 paragraph essays, not looking for excellent work just easy essays to turn in...if i dont do these i dnt pass my senior year, this is make-up work from 10th grade .. Essays i need done: -Charcter analysis of an epic hero(essay and sketch). -What is the role of ...
Friday, March 23, 2007 at 3:09pm

Math
Are you trying to solve for x, n or p? solve for n Show me how to work this problem. 2n = 4xp - 6 what is the problem? what grade r u in iam in 6 grade To get n all by itself, you need to divide by 2. But if you divide by 2 on the left, you have to divide by 2 on the right...
Wednesday, March 14, 2007 at 8:22pm

chemistry
Can someone please help me with this problem? An iron nail placed in a beaker with a solution of silver nitrate will cause pure silver to collect on the bottom of the beaker. Write a balanced equation for the reaction that occurs. This is what I have so far: Fe + AgNO3 --->...
Wednesday, February 28, 2007 at 10:20pm

math
Derivatives are usually not taught in 5th grade. That is what your question is about: Rates of change. Complete the following statements with the correct words Note: Correct spelling is important. If s(t) is a distance (or height or position) function, then s'(t) would be ...
Monday, February 19, 2007 at 10:00pm

math
how do you do fractionation? huh??/ What grade are u in?
Wednesday, February 7, 2007 at 7:19pm

Chemistry
If 100mL of 1mol HCL is mixed with 100 mL of 1mol NaOH, a temp rise of 6.2C occurs. What temp change will be obserbed, if under the same conditions, 10mL of 1mol NaOH is mixed with 10mL 1mol HCL? x Why wouldn't it be the same? One gets 1/10 th of the heat, but has only 1/...
Thursday, February 1, 2007 at 8:33am

Math Help Please (I Am New In This Website)
How do you multiply 367 by 72? the answer depends on your grade. Tell us what Grade in School you are in. Multiply 367 by 2; write down the answer. Multiply 367 by 70; add it to the answer above. Let us know what your answer is and someone here will give you feedback.
Saturday, January 27, 2007 at 7:55pm

Math, Geometry and Physics
An enemy ship is on the east side of a mountainous island. The enemy ship can maneuver to within 2500 meters of the 1800 meter high mountain peak and can shoot projectiles with an initial speed of 250m/sec. If western shoreline is horizontally 300 meters from the peak, what ...
Tuesday, January 16, 2007 at 10:40am

math,correction
can someone correct this for me please. Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C ...
Tuesday, January 9, 2007 at 7:38pm

math correction
can someone correct this for me.or teach me if i'm wrong Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last...
Monday, January 8, 2007 at 1:45pm

Algebra1234567890!
(-mn8)3 would it be: -m^3n^3164 (-mn8)3 = -24mn Without carrots I have no idea where your exponents are. how?I don't get this one? Is this Sandro from Mrs.Pfeiffer's class?What grade are you in? Leo is saying you need to use carets to show an exponent. As you have ...
Wednesday, November 8, 2006 at 5:44pm

Noiuns
Our son's 3rd grade teacher gave out a homework assignment which had the students make a sentence for each of their spelling words and then circle the "noun" in the sentence. We received his homework back from the teacher with the words, "I, you, He", ...
Wednesday, October 25, 2006 at 7:25pm

physics
I'm supposed to design a device that will protect a raw egg, GRADE A, (not that its really important to know what kind of egg it is... LOL) But, it will drop from a 12 FOOT height to a concrete floor. The only materials that I'm allowed is about 9 sheets of "8.5 X...
Friday, October 13, 2006 at 11:20am

Language Arts
I left my McMillian text book for language arts in school today and I have homework on page 2 and 3. I'm in the 6th grade does anyone have that book. I really really need those questions. I don't know if this gives page numbers that correspond with your text or even if...
Monday, September 11, 2006 at 5:04pm

math question
hi, i have a math question that i need help with: when data are non-numerical but can be ordered, such as letter grades, the mean cannot be calculated directly; but both the median and mode can be found. Last year in Ms. Flag's history course, the final grades were 8A'...
Tuesday, August 29, 2006 at 3:17pm

Technology - grade 9
Can someone tell me a brief summary on how to make an L.E.D light up when connected with only wires, nutes and bolts, battery and a paperclip.
Thursday, December 18, 2014 at 7:36pm

*repost* - Grade 11 math
Word problem: Wes saw fireworks at 28 degrees; Abby (who was standing 20 m away from him) saw the same fireworks at a 40 degree angle. Where was Abby standing? (The answer is 61.8m, but I don't know how to figure it out or sketch the triangle).
Wednesday, December 17, 2014 at 10:50pm

report - Grade 11 math
Word problem: Wes saw fireworks at 28 degrees; Abby (who was standing 20 m away from him) saw the same fireworks at a 40 degree angle. Where was Abby standing? (The answer is 61.8m, but I don't know how to figure it out or sketch the triangle).
Wednesday, December 17, 2014 at 10:29pm

physics
9th grade physics sketch a picture of the initial total velocity for the projectile when the angle is at 0 degrees, 30 degrees and 60 degrees. Resolve each into vertical and horizontal components. No velocity given
Wednesday, December 17, 2014 at 10:09pm

Sixth Grade Math
1. Write a phrase in words for each algebraic expression. A. "t - 29" Answer:29 minus t B. "a take away 16" Answer:16-a Write an algebraic expression with two variables and one constant. Answer: 150 + xy Did I answer the questions correctly?
Wednesday, December 17, 2014 at 10:04pm

Grade 11 math question
Word problem: Wes saw fireworks at 28 degrees; Abby (who was standing 20 m away from him) saw the same fireworks at a 40 degree angle. Where was Abby standing? (The answer is 61.8m, but I don't know how to figure it out or sketch the triangle). Thanks for any help!
Wednesday, December 17, 2014 at 8:08pm

6th grade math
what is the reason why we have an order of operations? Explain and provide an example.
Wednesday, December 17, 2014 at 7:21pm

7th grade math
Can you check these problems? 1. 4x^2 + 3x - 4x +5 = 4x^2 - x + 5 2. m - n + m - n - n = 2m - 3n 3. (7x + 5 - 3y) - (-3x - 5 +4y) = 7x + 3x -3y + 4y + 0 = 10x - y = 0 4. m/8 - 9 = 5 m/8 = 5 + 9 m = 14/8 m = 7/4 = 1 3/4
Wednesday, December 17, 2014 at 7:38am

5th grade math
rachel wants to reduce the size of her photo. Which factor listed below would scale down the size of her picture the most? A. 5/8 b. 11/16 c. 3/4 d. 8/5 trying to help my son with his math …have no idea about this.. could someone explain it to me?
Tuesday, December 16, 2014 at 7:09pm

6th grade Math
Define a variable. Then write each phrase as an algebraic expression. 1.Three more pancakes than his brother ate. explain why is this the answer
Tuesday, December 16, 2014 at 6:14pm

MATH 4TH GRADE
Teacher has 27 students. She asks the students to form as many groups of 4 as possible. How many students will not be in a group?
Monday, December 15, 2014 at 7:14pm

division
9/72=8 56/7=8 49/6=8 36/9=4 64/8=8 6/24=4 5/25=5 3/15=5 Easy I'm in fifth grade and I know this 😜
Monday, December 15, 2014 at 3:58pm

sixth grade math
what are the prime factorization of 88? I need help!
Sunday, December 14, 2014 at 7:56pm

Sixth Grade Math
Three different rectangles have an are of 28 square units. What are the possible whole-number dimensions of the rectangles? Can someone please help me how to solve this problem?
Sunday, December 14, 2014 at 3:08pm

Sixth Grade Math
Complete the following statement. As the value of n in the expression (1/4)^n increases, the value of the expression is? I need help with this question.
Sunday, December 14, 2014 at 1:33pm

Sixth Grade Math
To find the surface area of a box, add the areas of the faces: 2(lw) + 2(lh) +2(wh). What is the surface area of the box below? H=8m W=5m L =11m My answer is 366m.
Sunday, December 14, 2014 at 1:30pm

grade 10 physics
john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.
Saturday, December 13, 2014 at 10:13am

Physics grade 10
john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.
Saturday, December 13, 2014 at 10:08am

Grade 9 Science
why does a planet's orbital radius represents that planet's average distance from the sun and not its exact distance?
Friday, December 12, 2014 at 9:50pm

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.
Thursday, December 11, 2014 at 7:26pm

3rd grade math
Anna uses 1 eraser for every 2 packs of pencils she uses. If she uses 10 packs of pencils in a year, how many erasers will she use?
Thursday, December 11, 2014 at 7:22pm

7th grade math
Anna walked 8 miles in 3 hours. Juan walked 14 miles in 5 hours. Are these rates in proportion? 8/3 divided 3/3 = 2.66/1= 2.66 14/5 divided 5/5= 2.80/1= 2.80
Thursday, December 11, 2014 at 6:14pm

grade 10
guys I don't know what career i can do coz I chose math literary - business studies-geography- tourism so if you can help mi plz guyz
Thursday, December 11, 2014 at 6:08pm

Science Help
Drew is walking back up the best hill in the neighborhood 24* grade. He's pulling on the empty 2.1kg sled with a force of 18N at an angle of 55* with the hill. He's walking with a constant velocity, what is the coefficient of friction?
Thursday, December 11, 2014 at 10:32am

6TH GRADE MATH
Create a number line model that represents the equation below. -5 x -2 = 10 Can some help me please?
Thursday, December 11, 2014 at 1:18am

Math 6th grade
At lunch 3 1/4 small pizzas were equally devided into 4 people one person eats 1/4 of what he was given how much of a whole pizza did that person eat
Wednesday, December 10, 2014 at 11:04pm

Sixth Grade Math
Lian's dog is 456 millimeters tall. How many centimeters tall is Lian's dog? Is 4.56 centimeters the correct answer?
Wednesday, December 10, 2014 at 9:39pm

Estimating sums and differnces of fractions
Hello! My 10 year old daughter is having trouble understanding these preparation questions from her math teacher. I know the answer but I don't know how to explain it to her.. I'm sorry if that doesn't make any sense. When I was in 5th grade they taught us ...
Wednesday, December 10, 2014 at 8:18pm

4th grade math
can you convert 154 minutes to total hours in a week? I don't know how to convert
Tuesday, December 9, 2014 at 8:46pm

math
alan, gil, and deb's point in a video game was in the ratio 2:3:4.deb scored 114400 points. how many points did gill score? how many points did they score in all PLEASE HELP but can you make your answer so that I can understand I am in 6th grade but I am not the that smart...
Tuesday, December 9, 2014 at 6:03pm

Health 4th grade
When choosing a snack it is important to select a food that contains a large amount of these essential nutrients in comparison to the caloric value of the food. A.vitamins/nutrients B.vitamins/minerals C.vitamins/proteins D.vitamins/vegetables My answer:A
Tuesday, December 9, 2014 at 1:08pm

math(5th grade)
Gino wants to travel from home to school. Find how many routes are possible if he does not travel in a northerly direction.
Tuesday, December 9, 2014 at 2:33am

Health 4th grade
It is important to choose simple carbohydrates for breakfast to get you started for your day. True or False My answer: True
Monday, December 8, 2014 at 6:03pm

Math Help
1.Of the 80 eith-graders, 32 are going on the class retreat. What percent of the eith grade going on the retreat? A. 25% B. 55%*** C. 40% D. 32% 2.What is the sale price for a pair of shows that was originally prices at $54.99 and now is 20% off? A. $38.49 B. $41.24 C. $43.99...
Monday, December 8, 2014 at 6:00pm

S.S 6th grade american revolution
As a result of the first Continental Congress.. A) Colonists agreed to obey most of Britain's rule B) the declaration of right was created. C) king George agreed to go along with most of the colonist demand I think it letter b
Thursday, December 4, 2014 at 3:58pm

S.S 6th grade american revolution
Patrick Henry said, "I am not Virginian, i am an american" in order to ... A.persuade colonists to join forces B.express his anger at the south C.ask colonists to abolish slavery I think it C.
Thursday, December 4, 2014 at 3:32pm

6th grade math
the sum of twelve divided by twice a number
Thursday, December 4, 2014 at 1:58pm

5th grade math
how do i round and divide whith decimals????????????????????????????????​????????????????????????????????????????​????????????????????????????????????????​?????????????????????????????????????
Thursday, December 4, 2014 at 10:03am

5th grade math
there is a gameboard and the arrow has landed on seven.what is the probability of spinning a number larger than 6 on the spinner?
Thursday, December 4, 2014 at 10:00am

6th grade Math
Abraham earns $11.50 an hour. How many hours will Abraham have to work to earn $483? Please Show Work!!!!
Wednesday, December 3, 2014 at 4:58pm

3rd grade math
What is the next number pattern below? 16,24,32,40,48
Tuesday, December 2, 2014 at 7:33am

6th grade english
Question- These plants thrive in warm climates. My answer please tell me if i'm right- The verb is thrive- Is thrive a transitive or intransitive verb? I put intransitive, am i right?
Monday, December 1, 2014 at 6:33pm

Sixth Grade Math
A car driving cross-country traveled 180 miles in 4 hours. At this rate of speed, how many miles further will the car travel in the next 3 hours? My answer is 135 miles. Is my answer correct?
Sunday, November 30, 2014 at 10:39pm

SIXTH GRADE MATH
The staff of the Westpoint Public Library signed up 6 volunteers in the last 21 days. If the library staff continues to sign up volunteers at this rate, how many new volunteers will they get in the next 7-day week? 2 volunteers is my answer. Is my answer correct?. If not I ...
Sunday, November 30, 2014 at 10:21am

SIXTH GRADE MATH
The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
Sunday, November 30, 2014 at 10:07am

math
how do you do 6th grade math cryptic quiz ?
Saturday, November 29, 2014 at 1:35pm

SIXTH GRADE MATH
The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
Saturday, November 29, 2014 at 12:08pm

8th grade math question..
Lashonda found a recipe that makes 2 1/2 dozen cupcakes and requires 1/4 cup of vegetable oil. If she makes 90 cupcakes for a family reunion picnic, how much vegetable oil will she need?
Thursday, November 27, 2014 at 12:34pm

Social Studies Grade 6
Here are the instructions!(: Copy a symbol or an illustration to represent each item. Write a definition of each term in your own words. Write a sentence that includes the term and the words Mexico City. Thank you!(:
Monday, November 24, 2014 at 4:10pm

Social Studies Grade 6
What are the definition for rural decline, spatial inequality, standard of living, and urbanization. Please help me! Thank you a sixth grader Susie
Monday, November 24, 2014 at 4:06pm

English Writeacher
I want to thank you for advice and help in my English course. On my 9 page final I missed 7 questions, but what was so bad it was on complex and compound complex sentences my weakness I knew. I made 93 on final. I have a 96.83 grade average for course. Again Thank You for help...
Saturday, November 22, 2014 at 6:10pm

math
what is 245+6,0000435= thanks for help and thank u i need to pass my 3rd grade test thanks
Thursday, November 20, 2014 at 8:41pm

MATH 6 GRADE
The manager turns on the restaurant's two neon signs at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. In how many seconds will they blink together again? Explain how you got your answer. Need help please, thank you!
Thursday, November 20, 2014 at 7:11pm

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