Saturday

March 28, 2015

March 28, 2015

Post a New Question | Current Questions

**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*

**5th grade math**

I need help to solve for n n/80=30
*Monday, September 8, 2008 at 6:30pm*

**American History**

I have been assigned a paragraph to "decode" of the Declaration of Independence. I am supposed to write it to make it so that it is easily understood and read-able. I'm having a hard time with it though, because I don't know what the actual words mean. It is ...
*Monday, September 8, 2008 at 3:10pm*

**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*

**6th grade**

unscramble the work broanalse
*Sunday, September 7, 2008 at 4:09pm*

**10th grade math**

3(x-2)= 4-(x-2)
*Saturday, September 6, 2008 at 11:58am*

**11th grade**

what exactly is chemistry?
*Thursday, September 4, 2008 at 5:33pm*

**writing**

does anyone on here know how to grade a SAT essay?
*Thursday, September 4, 2008 at 12:31pm*

**7th grade**

wht is the 8 parts of speech
*Wednesday, September 3, 2008 at 8:35pm*

**1st grade**

What is the format to do a book report
*Friday, August 29, 2008 at 11:29am*

**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*

**4th grade**

What are the communtative property of addition?
*Monday, August 25, 2008 at 9:16pm*

**4th grade**

how to use lattice method?
*Friday, August 22, 2008 at 7:53am*

**8th grade science**

what is an example of suspension
*Wednesday, August 20, 2008 at 9:09pm*

**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*

**check over--**

this is a book review for 9th grade honors english. does it look OK? are there any errors or anything? thanks-- The novel Dairy Queen by Catherine Murdock is the story of 15-year-old D.J. Schwenk who lives in Red Bend Wisconsin. Her father gets injured and can no longer take ...
*Thursday, May 29, 2008 at 6:24am*

**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*

**7th grade math**

PV/nR=T find the value for n
*Monday, March 31, 2008 at 7:58pm*

**12th grade math help!!!!**

Who invented the lightbulb? Thanks
*Friday, March 28, 2008 at 12:16pm*

**Algebra 4th grade**

Evaluate each expression for x = 3 2x x (3x) + 5 --- 6
*Tuesday, March 18, 2008 at 6:38pm*

**science**

Examples of positive, negative and neutral friction? We always learned about friction as either being positive (tires gripping the road, brake friction for stopping etc.) or negative friction (causing wear or heat as in a bearing or engine due to parts moving against each ...
*Sunday, March 16, 2008 at 9:36am*

**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*

**3rd grade english**

wat is a noun
*Sunday, January 27, 2008 at 2:34pm*

**4th grade Algebra**

How to solve this problem. 3X-Y=12
*Thursday, January 24, 2008 at 5:53pm*

**5th Grade Math Problem**

If 1=4, 2=7, 4=13, 5=16, 8=25, what is the pattern?
*Thursday, December 20, 2007 at 6:17pm*

**Grade 10 MATH**

17^115
*Wednesday, December 5, 2007 at 7:56pm*

**Math**

I am trying to help my son in Algebra, the only thing is that I have forgot some of these thing.He has a word problem I can not figure it out please help a mother help her 9th grader. Q- The polygons below are similar. Find the unknown side lengths if c=24. Each measure is in ...
*Tuesday, November 13, 2007 at 8:29pm*

**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*

**Math**

I am tring to finish my 10th grade. I got hurt last Jan. 2007. And was force to quit public school. In short of every. I started online schooling and I have to write an essay for a final grade in Math compare three college to each other and make a graph telling which school ...
*Thursday, September 13, 2007 at 9:54am*

**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*

**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*

**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*

**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*

**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,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*

**English 9th Grade**

HELP!!! Need to write a 2 page paper on Shakespeare using dramatic foil. Please let me know what that means. I will be contrasting 2 characters in Romeo and Juliet. Thank you so much. http://www.tnellen.com/cybereng/lit_terms/terms/2terms.html#Foil Here is an excellent ...
*Thursday, October 26, 2006 at 10:59pm*

**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*

**homework !!**

My daughter did excellent in school last year (grade 1) She was reading at a grade 2 level, and loved school. Now, she says she can't read, won't read and when she tries she is getting all the small words wrong. Is she playing me or does she have a problem?? My first ...
*Tuesday, September 19, 2006 at 3:01pm*

**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*

**statistic**

A statistics quiz consists of 10 multiple questions. There are four choices for each question. One student is unprepared and decides to guess the answers to every question. Assuming 70% is a passing grade, find the probability that the student will pass the quiz.
*Saturday, March 28, 2015 at 1:28am*

**geography,life sciences,maths lit and consumer studies**

am in grade 11 so i dnt knw wht career i wnt to do after finished matric so plz help me
*Friday, March 27, 2015 at 10:10am*

**6 grade math**

Choose all statements that are not true. a 20% of 20 is 4 b 30% of 30 is 9 c 40% of 50 is 15 d 50% of 110 is 60 e 60% of 60 is 360 The answer I choose is all of them. Is this correct.
*Thursday, March 26, 2015 at 7:55pm*

**5th grade math**

Find the value of 'n' to make each statement true. 1. 22 times n is between 80 and 85
*Thursday, March 26, 2015 at 7:16pm*

**5th grade math**

Find the value of 'n' to make each statment true. 1.22 x n is between 80 and 85
*Thursday, March 26, 2015 at 6:59pm*

**7th grade math (probability)**

Can you check these, please? Ten cards numbered 1 through 10 are mixed together and then one card is drawn. Find the probability of each event. Write each answer as a fraction, percent, and decimal. 14. P(less than 5) = 4/10 = 2/5 Ans: 2/5, 40%, 0.4 15. P(greater than 3) = 7/...
*Thursday, March 26, 2015 at 6:42pm*

**4th grade math**

The drill team is selling cookies to raise money. It costs .78$ to make each cookie. They sell them for $1.50 each. If they sell 253 cookies, how much profit will they make? Do I have to subtract the .78 from 1.50 then multiply that answer by 253? Or do i forget about the $1....
*Tuesday, March 24, 2015 at 6:07pm*

**Science grade 8**

Which chemical equation is balanced? 1. H20 H 2 + 20 2 2. 2H20 2H2 +0 2 3. 2H20 H2 + 20 2 4. H2O 2H2 + 20 2 Im super confused... But I think its 4?? Im probably wrong so please help?!?!
*Monday, March 23, 2015 at 6:03pm*

**english grade 8**

11. Which sentence contains a predicate pronoun as a subject complement ? (1 point) A. The best person for the job is she. B. The ground is sloping and uneven. C. We Wondered what happened to him. D. Amy is employee of the week. I think it's C or D , help ?
*Monday, March 23, 2015 at 12:16pm*

**MATHEMATICAL LITERACY,ECONOMICS,TOURISM AND BUSINE**

WHAT CAREER CAN I SUDY WITH THE FOLLOWING SUBJECT? AM STUDYING GRADE 10 AT HLONIPHA HIGH SCHOOL
*Monday, March 23, 2015 at 11:35am*

**math**

For more than 4000 years the Great Pyramid of Giza stood as the tallest structure in the world. After it was completed, the pyramid stood an amazing 481 feet high. Y 9 th. grade math Semester Project: The Great Pyramid of Giza
*Thursday, March 19, 2015 at 7:46am*

**3rd grade math**

what is the standard form of 213
*Wednesday, March 18, 2015 at 6:32pm*

**4th grade math**

What is the fomula to figure out the reasoning to this question? "Kurt cut pizzas into wedges measuring 40 degrees. If each person eats one piece of pizza, how many people could he feed with two whole pizzas?
*Wednesday, March 18, 2015 at 5:26pm*

**Math - 7th grade (repost)**

Can someone please help? I'm given a box and whisker plot that represents the cost, in dollars, of 12 CDs. How can I determine how many CD's cost between $14.60 (Q1 value) and $26 (Q3 value) and how many CD's cost less than $14.60?
*Wednesday, March 18, 2015 at 7:08am*

**Math - 7th grade**

I'm given a box and whisker plot that represents the cost, in dollars, of 12 CDs. How can I determine how many CD's cost between $14.60 (Q1 value) and $26 (Q3 value) and how many CD's cost less than $14.60?
*Tuesday, March 17, 2015 at 11:36pm*

**Math 7th grade**

Geraldo bought some computer software on layaway. He paid $12 down and must make a payment of $5 each week for 4 weeks. How much will Geraldo pay in all?
*Monday, March 16, 2015 at 7:54pm*

**Math**

the eighth grade students are selling magazine subscriptions to raise money for a class trip. they earn $3 for every subscription they sell. so far, they have earned $228 of the $396 needed. how many more subscriptions must the students sell to meet their goal?
*Monday, March 16, 2015 at 7:25pm*

**3 rd grade Math**

If the hexagon represents one whole, what fractions do the trapezoid, the parallelogram, and the triangle represent? explain how you found your answers. can anybody please explain this how to tell to my son.
*Monday, March 16, 2015 at 4:08pm*

**Language Arts second grade**

I had to make a complete sentence using, won't, turn and on. I could add any additional words. My sentence is ...The tv won't turn on mom and dad. My mom says that's not correct grammar?
*Monday, March 16, 2015 at 3:57pm*

**math(5th grade)**

some 1 centimeter squares are arranged in a staircase pattern. The drawing below shows a 3 step staircase. the area is 6 square centimeters and the perimeter is 12 centimeters. what is the area and perimeter of a 10 step staircase? pls help!
*Monday, March 16, 2015 at 12:36am*

** 12th Grade**

What career can I study if I am doing this subject: Mathamatical literacy ,Accounting , Economics And Business studies anyone who can help?
*Sunday, March 15, 2015 at 11:31am*

**7th grade geometry**

When wrapping a present in the shape of a rectangle prism, joe adds an additional 2.5 feet of paper to allow for overlap. How many sq ft does he use to wrap a gift 3.5 ft long, 18 inches wide, and 2 ft high?
*Thursday, March 12, 2015 at 5:34pm*

**5th grade Math**

4 x blank is greater than 12 but less than 16. Answers can be in mixed fractions and/or improper fraction. Can someone please explain how to do this?
*Wednesday, March 11, 2015 at 8:56pm*

**Math 5th grade**

John brings fruit punch to a school party. He brings 6 gallons of fruit punch but the students only drink 3/4 of it. How much did they drink?
*Wednesday, March 11, 2015 at 8:48pm*

**Math - 7th grade**

Can you check following? 1. The football association wants to increase the number of students who attend the football games for the upcoming season. In order to accomplish this, the association is surveying students to gain more information about student interest in sports. ...
*Wednesday, March 11, 2015 at 7:56pm*

**4th grade Science**

why are acids that are found in the stomach and sweat important? HELP
*Monday, March 9, 2015 at 10:06pm*

**3rd grade fraction**

Antonio has 15 pennies in his pocket. Five eighths of his coins are pennies. How many coins does Antonio have in his pocket.
*Monday, March 9, 2015 at 9:31pm*

**4th grade Science**

explain how your circulatory and immune systems work together to keep you healthy. Pleaseeeee help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*Monday, March 9, 2015 at 9:25pm*

**math**

(ASAP!!) can somebody tell me the answers to the measurement test on Connexus academy lesson 17 unit 2 measurement test, so I get a good grade.
*Sunday, March 8, 2015 at 7:42pm*

**5th grade Science**

A plastic boat has a mass of 3600g and a volume of 1200cm cubed; what is the density? I figured out the answer to this first ? is 3g/cm cubed I need help with Does the boat float in water? Why or Why not?
*Sunday, March 8, 2015 at 5:43pm*

**11th Grade Geometry **

A yardstick casts a shadow of 24 in. at the same time a telephone pole casts a shadow of 20 ft 8 in. What is the height of the telephone pole, to the nearest inch? (1 yd = 36 in., and 1 ft = 12 in.)
*Friday, March 6, 2015 at 12:39pm*

**5th grade math**

Kallisto built a rectangular sign that measured 2 3/4 feet in length by 1 1/2 feet in width. To find the area, multiply the length and width. what is the area of the sign in square feet? Write an equation to solve. 2 3/4 1 1/2 +2 3/4 1 1/2 =11/1/2 ------ ----- 4 6/4= 2 2/2=3
*Thursday, March 5, 2015 at 11:26pm*

**5th grade math**

It takes Marty 1 1/4 hours to get ready for school. If 1/5 of that time is used to shower, what fraction of an hour does it take him to shower? 1/4answer
*Thursday, March 5, 2015 at 11:18pm*

**math 5th grade **

if you have a drawer with 10 black socks and 8 white socks, what is the probability that you would reach in and choose a white sock without looking?
*Thursday, March 5, 2015 at 6:26pm*

**using skills**

At which grade level is it most appropriate for children to group by more than one attribute? A. Four years old B. Kindergarten C. Preschool D. Primary my answer is d.
*Thursday, March 5, 2015 at 5:46pm*

**Math 6th grade**

Explain what a neutral field is.
*Wednesday, March 4, 2015 at 9:03pm*

**6th grade math**

Use the scale 1/4 = 9 ft to represent a 27 ft square
*Wednesday, March 4, 2015 at 8:50pm*

**Science 8th Grade**

Items of clothing rub against each other when they are in a clothes dryer. This can sometimes cause a person to feel a slight shock when he or she removes the clothes from the dryer. This is due to A. The dryer not being grounded B. Static Electricity **** C. Current caused by...
*Wednesday, March 4, 2015 at 2:44pm*

**7th grade science**

how much work is done on an object with 25 kg on earth if it moves 13m? i really need help
*Tuesday, March 3, 2015 at 11:17pm*

**Emerson**

I'm helping my son he is in 4th grade . His hw it's hard and this is the problem : find two mixed numbers. So that the sum is 7 2/8 and the difference 2 4/8.
*Tuesday, March 3, 2015 at 9:33pm*

**Science 8th Grade**

1. How Will resistance change when the voltage increases in an electrical circuit if the current remains constant A. It will decrease **** B. It will stay the same C. It will increase D. It will decrease, then increase
*Tuesday, March 3, 2015 at 6:17pm*

**7th Grade Math.**

I have been trying to work this out but just cant. Find the function rule. X -2 -1 0 1 2 Y 9 4 -1 -6 -11 Thanks, ~JH
*Tuesday, March 3, 2015 at 4:11pm*

**6TH GRADE MATH**

The value of the dependent variable in a function is always __________ the value of the independent variable. 1.GREATER THAN 2.DEPENDENT ON 3.LESS THAN 4.EQUAL TO
*Tuesday, March 3, 2015 at 10:32am*

**Statistics **

1200 high school freshman were randomly selected for a national survey. Among survey participants, the mean grade-point average was 2.8, and standard deviation was 0.6. What is the margin of error, assuming a 95% confidence level?
*Friday, February 27, 2015 at 1:18pm*

**7th grade math**

Can you help with geometry? 1. Sally constructs a triangle with one side 6 inches long and another side 8 inches long. What is the 3rd side? (haven't learned Pythagorean theorem) Ans: 6 + x > 8 x > 2 6 + 8 > x 14 > x 8 + x > 6 x > -2 so, x must be > 2...
*Friday, February 27, 2015 at 7:31am*

**3rd grade math**

A parking lot near the sports field holds a total of 52 vehicles. There are 42 cars parked there now. Half of these cars are red, 10 are blue, and the rest are silver. What fraction of the cars are silver?
*Friday, February 27, 2015 at 12:07am*

Pages: <<Prev | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | **23** | 24 | 25 | 26 | 27 | 28 | 29 | Next>>

Post a New Question | Current Questions