Saturday

February 28, 2015

February 28, 2015

Number of results: 174,099

**Math**

I don't get the first problem of my homework. We learned three lessons today, the increase, decrease, and finding the base number. But i don't know which one I should use. Please help with this problem: There are 12 girls in Mr. Cooper's class. The girls make up 40% of the ...
*October 11, 2012 by Losa*

**statistics**

this is a problem in my statistics class, and I am lost to me, it is confusing or missing something here is the problem please help grade points are assignede as follows: a=4,b=3,c=2,d=1,f=0. grades are weighted according to credit hours. if a student receives an A in a four-...
*February 10, 2013 by Cyn*

**Math**

There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test? ****** This is how I slove the problem, but I stuck in the ...
*March 1, 2012 by Grace*

**math**

suppose you want to take a karate class. the first class is january 16th. the class meets every week for 6 weekswhats the date of the last class? Start at 1/16 and add 7 days six times to get 1/23, 1/30, 2/6, 2/13, 2/20 Find the sum the each letter stands for in the problem ...
*October 18, 2006 by erin*

**math**

Math word problem: There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class.
*October 2, 2012 by Lisa*

**Physics**

You slide your friend with a mass of 65 kg out of the way as they are blocking the exit and keeping you from escaping from physics class where you have been tormented by problems for the last hour and a half. The coefficient of kinetic friction between the floor and your ...
*January 1, 2013 by Bart*

**problem solving**

ou are completing the final exam in your class. Your instructor’s assignment instructions state that you may only use the following resources: library books, class notes, texts, and the instructor. You and your roommate discussed one of the questions, but you wrote your own ...
*April 12, 2013 by ashley*

**statistics**

I need to find the class midpoint, boundaries and class with for the following problem Tar Cigarette Filter Frequency 2-5 2 6-9 2 10-13 6 14-17 15 I did the midpoint and boundaries 3.5 5.5 7.5 9.5 11.5 13.5 15.5 17.5 But for the width I got an answer of 1.25 can someone please...
*April 19, 2012 by ALFREDA*

**5th math **

what is the least common multiple (LCM)for 15 and 45? There are 16 girls in a class of 36 student. which expression could be used to determine the number of boys (b) in the class? please! help i think this too hard for 5th grade math. this suppose to be for 10th or college ...
*January 31, 2011 by pat*

**Math**

On a math test,12 students earned an A. This number is exactly 25% of the total number of students in the class. How many students are in the class? 'In this problem I'm not sure whether I'm being asked to solve for one or two unknowns. May I have your help ? Thank you.
*July 21, 2010 by Cliff*

**To Helper**

I had a problem to solve, and I dont get how to make equations from this problem. Mrs. Chans math class contributed 2 dollars and $1 coins to an earthquake relief fund. the number of $1 coins contributed was 8 less than 5 times the number of $2 coins contributed. if class ...
*January 13, 2011 by Mathew*

**high school algerbra class**

(2/x^2-4)+(3/x^2)+(x-6+1/x+3) someone please show me how to work this problem with the steps, so I can see if I can get it. This is due tomorrow in class. Thank you.
*August 25, 2010 by kenneth*

**Moral Help**

This is pretty irrelevant to subjects, but I've had a problem (no, not a math problem) that I could use some good advice on. Today I received a detention for messing around with a friend during a computer apps class. It's easy as hell, so I find it easy to be distracted. ...
*September 18, 2007 by John*

**College Algebra**

Solve the problem. Jon has 1162 points in his math class. He must have 86% of the 1500 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?
*February 10, 2012 by Jess*

**math**

At first one third of the class were boys. Then another boy joined the class. Now three out of eight of the class are boys how many students are in the class now? (Hint:There are fewer than 40 students in the class.)
*August 29, 2012 by Jenny*

**Math problem or trick**

if 60% of students in the class were wearing sport shoes and 40% dress shoes, does it mean that everybody in the class were wearing shoes?
*May 16, 2014 by Luke*

**high school**

Math problem: Anida won the class election by margin of 5-3. She received 355 votes. How many votes did the other candidates get? I really need to understand how you did the problem to get the answer
*May 24, 2009 by Ninja*

**English**

He has stopped taking boxing lessons and goes to the ballet class. (In this sentence, what does 'class'mean? Does 'class' mean 'lesson'? Or does 'class' mean the 'class' as in ' He is a student of Class 1-1'?)
*January 31, 2013 by rfvv*

**Discrete Math**

I have a review problem I am having problems with. This is the problem: Be able to show the function, g(x) is O(f(x)) numerically as we have done in class Use the definition of O-notation to prove that 2x^2+3x+4 is O(x^2) (Do not use the theorem on polynomial orders) This is ...
*April 14, 2010 by Elisabeth*

**PreAp Physics**

You are walking from your math class to your science class carrying a book weighing 112N. You walk 45 meters down the hall, climb 4.5 meters up the stairs and then walk another 40 meters to your science class. What is the total work performed on your books.
*November 23, 2011 by Mandy*

**Statistics- Math**

If a specific class in a frequency distribution has class boundaries of 132.5 - 147.5 what are the class limits ?
*February 17, 2012 by Kerrin*

**Math**

There are 28 boys in a class which account to 78 of the whole class. Find the total number of students and girls in the class.
*November 3, 2012 by Siranta*

**Math **

There are three times as many people in the psychology class as in the art history class. there are 16 more people in the algebra class then the art history class The total enrollment of the three classes is 86. How many students are enrolled in each class?. I need a little ...
*May 8, 2014 by Christopher*

**Math - Alegbra 2 some1 plz help?**

in a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a class? how many students ...
*December 2, 2006 by Agnes*

**math for 6 grade**

write and solve an eqution for the following: there are 17 children in the class. 5 more join the class. how many students are in the class.
*October 6, 2009 by math for 6 grade*

**Math**

If threr are a total of 20 students in Bibi's class, how many boys are in the class? How manygirls are in the class?
*March 15, 2012 by Emily*

**algebra**

please help me write a complete algebraic solution thanks problem 18. mike, alex, olivia ran for the office of president of their senior class . of the 400 votes cast, olivia received 38% of the votes and michael received 116 votes. A. What % of the votes did michael receive? ...
*December 2, 2011 by ann*

**maths**

the class-marks of classes in distribution are 6,10,14,18,22,26,30.find (a)class size (b)lower limit of second class (c)upper limit of last class (d)third class Explain in detail.
*February 24, 2013 by ujjval*

**stats 101**

how do you find the lower class limit,upper class limit, class width, class midpoint, and class boundaries from a set of frequencies data
*July 30, 2012 by kelly*

**English**

1. My favorite class is math class. 2. My favorite class is a math class. 3. My favorite class is the math class. (Which one is correct?)
*May 13, 2009 by John*

**math**

The average height of a class of students is 134.7cm. The sum of all the heights is 3771.6 cm. There are 17 boys in the class. How many girls are in the class?
*November 10, 2009 by tsn*

**Business**

In a frequency distribution, what is the number of observations in a class called? A. class midpoint B. class interval C. class array D. class frequency E. none of the above
*December 13, 2009 by Tykrane*

**English**

1. What's your favorite class? 2. It's math. 3. It's math class. 4. It's a math class. 5. My favorite class is math. Which are the right answers for the question? 6. What's your favorite subject? 7. It's math. (What about the question, #6? Is the question the same as question ...
*March 9, 2010 by rfvv*

**math**

Three students, Chris, Vlad, and Steve, are registered for the same class and attend independently of each other. If Chris is in class 80% of the time, Vlad is in class 85% of the time, and Steve is in class 90% of the time, what is the probability that at least two of them ...
*April 21, 2013 by Lindsay *

**Math**

In a math class there are 28 students. Each student has a 90% chance of attending any given class and students act independently. What is the probability that tomorrow's class has perfect attendance?
*March 22, 2012 by Cortney*

**algebra**

I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem and what steps must ...
*January 31, 2010 by vicky*

**algebra**

I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem and what steps must ...
*January 31, 2010 by vicky*

**Sociology**

I have already answered these questions but I am a little uneasy of the answers. Could someone please read them and provide feedback and if possible a little more detail for explainations? Q: What is the meaning of stratified? A: To classify or separate (people) into groups Q...
*January 18, 2009 by TOM*

**geometry**

Write the equation and solve the problem: A high school graduating class is made up of 512 students. There are 70 more girls than boys. How many boys are in the class?
*November 5, 2009 by Clair*

**math**

Write an expression for the problem, then evaluate. Tickets for children in a carnival cost 150. A teacher of a class of 48 pupils gets for the whole class but only 43 pupils buy. Is it right for the teacher to say that she has 6,350 for the tickets of the children? Why
*June 18, 2014 by jr*

**Physics**

Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed. After I read the ...
*October 9, 2012 by Mike*

**math**

there are 4 girls in Mrs. Changs class than Mr. Blackwell's. 5 girls moved from Mrs. Changs to Mr. Blackwells. Now there are twice as many girls in Mr. Blackwells class as there are in Mrs. Changs, How many girls were in Mr. Blackwells class to begin with? Help, stuck with ...
*October 21, 2010 by lomas*

**Math**

There Is 3/4 Of Class 218 Going To Art And 1/8 Going To Gym. The Rest Of The Class Is Going To Computer Class. What Fraction Of The Class Is Going To Computers ?
*April 4, 2013 by Zhanise*

**English**

What's your favorite class? My favorite class is math. My favorite is math class. My favorite class is a math class. My favorite class is the math class. (Which answer is correct?)
*March 3, 2009 by John*

**math**

every math class at super fun time high school has 31 students and every science class has 18 students. the school offers 4 more math class than sciencs. if the school has 418 students, how many of each class does the school offer.
*August 18, 2012 by niko*

**Math:Probability**

The probability of having homework over the weekend in math is 0.9,history is 0.6, and Spanish is 0.75. 1. What is the probability of having exactly one class that gives homework? Is this a nCx problem? I got an illogical answer: 10.54=1054% THIS IS NOT RIGHT!!!!!!! 2. What is...
*February 28, 2014 by Anonymous*

**Math - Alegbra 2**

In a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a class? how many students ...
*December 2, 2006 by AS*

**business**

Eastern Airlines knows that 20% of its customer fly first class,20% fly business class, and the rest fly coach. Of those customers who fly first class,70% are from the East Coast while 30% are from elsewhere. In addition, of those customers who fly business class, 50% are from...
*October 14, 2011 by jose alejandro*

**Math**

In mr.kingmans math class four fifths of the stundents earned an a on their math exam.the rest of the class earned a b .what percent of the class earned an a ? WhAt percent of the class earned a b
*August 10, 2014 by Jade*

**math**

there are 30 students in class. 1/5 of the class are girls. how many boys are in the class
*April 6, 2010 by amber*

**math**

â€¢You and three (3) of your friends were in the same advance placement high school chemistry class in high school. All four (4) of you decided to take the same chemistry class together at the local university along with 21 other students. On the first day of class, the ...
*December 4, 2012 by jacque*

**Math**

THE STUDENTS IN MR HENLYS CLASS PREDICTED THAT IF THEY EACH ROLLED A DIE 90 TIMES THE RESULT OF 1 OUT OF EVERY 6 ROLLS WOULD BE A 5. Each student then completed the experiment which result best supports the prediction of getting a 5 once out of 6 times. ( the question didnt ...
*March 5, 2007 by Jamee*

**Statistics **

A professor has noticed that, even though attendance is not a component of the final grade for the class, students that attend regularly generally get better grades. In fact, 39% of those who come to class on a regular basis receive A's. Only 14% who do not attend regularly ...
*October 25, 2009 by Carrie*

**English**

Which class are you in? I'm in class 2. What class are you in? I'm in class 2. Which year and which class are you in? I'm in the second year and the second class. What year and what class are you in? I'm in the second year and second class. I'm in the second year, second class...
*March 17, 2009 by John*

**Math**

The class with the greatest mean sales in a spring fundraiser will win a prize. The mean for Eric's class is $148. The mean for Natalia's class is $152. Natalia's sales total $150. If Natalia moves to Eric's class, the mean for each class increases. Explain why?
*June 17, 2014 by Annie*

**algebra**

Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original number of girls in class...
*November 4, 2014 by nimal*

**algebra**

Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original number of girls in class...
*November 4, 2014 by nimal*

**Physics**

Find the net force on a,b and c. Given ma=363kg mb=517kg and mc=154kg. a<--0.5m-->b<--0.25-->c This was a question given to our class by our physics teacher ... he did not show us how to do it. So any help/steps involved to solve this problem would be much ...
*February 21, 2010 by Krissy*

**Math**

In a middle school 5th grade class there are 5 girls for every 4 boys. all together the class has 27 students. How many boys are in the class?
*October 8, 2012 by Matt Lyon*

**English**

1. My favorite class is a math class. 2. My favorite class is math class. (Which one is right? are both OK? Do they have a different meaning?) 3. I have two math classes today. 4. I have two math class today. (Which one is right?)
*May 19, 2009 by John*

**math**

Cierra arrived at her dance at 9:05. She waited in the classroom for 10 minutes and them the class began. If the class ended 1 hour 10 minutes later,at what time did the class end? A.10:15 B.10:20 C.10:25 D.10:30 C?
*February 23, 2012 by Andrew*

**math**

the biology class has a lab every days. the earth science class has a lab every three days . which class day do they both have class ?
*October 22, 2013 by mike*

**Math**

More than 18'students in an algebra class pass the first test. This is about three-fifths of the class. How many students are in the class? How do you know?
*March 5, 2013 by Carol*

**math**

how do i do variables in math i dont figure it out your self:) Do you have a specific problem you want help with? The subject should be covered by your text and your teacher's in-class explantions.
*September 19, 2006 by cassie*

**math**

a class has 18 classes with 35 students in each class. in order to reduce the class size to 30,how many new classes must be formed?
*October 2, 2007 by christal*

**math**

the ratio of boys to girls in class is 2:3. If Ms. Wise has 24 students in her class, how many girls are in the class. Please show work
*February 2, 2015 by angela*

**statistics**

how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last semester ...
*October 4, 2014 by nina*

**Physics(class) /Math (problem)**

Moe earns 15% more than her husband Joe. Together they make 78000 per year. What is Joe’s annual salary? Answer to two significant figures. My answer was $31000, but the program doesn't seem to want to take it. Did I do something wrong?
*October 3, 2012 by Christine*

**Math**

In a class of 80 students, 40 bring their textbooks to class, 20 bring some sort of beverage to class, 60 bring calculators to class, while 5 students bring nothing to class. If 30 students bring both their textbooks and calculators to class, how many students bring only a ...
*August 26, 2014 by anonymous*

**sociology**

1. discussion of marx, how does marx defines class and what problem does he have. 2. discussion between social class and health inequalities.
*June 7, 2008 by nancy*

**percents**

how do you find the percent of how many students in the class for example there are 2000 students in a class and 20 percent of them speak french...how do i solve this problem?
*February 9, 2009 by joelyz*

**Exam skills**

Hello I'm a grade 10 student . I'm an A* student and have excellent knowledge. I raise my hand in class and teachers love the way i act maturally and how i get all questions right each time The problem with me is I get everything right in class but when it comes to tests or ...
*October 8, 2007 by AMY*

**Algebra 1**

Mary's class took two tests last week. 80% of the class passed the math test, 90% of the class passed the English test, and 72% of the class passed both. What is the probablility that a randomly selected student in Mary's class failed both tests? Express your answer as a ...
*November 5, 2009 by Zach*

**math/hurry**

The ratio of boys to girls in Mr. Joiner’s class is 5 to 7. If there are 15 boys in the class, how many total students are in the class?
*March 26, 2010 by Kirk*

**math**

i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 URGENT !!!
*September 19, 2010 by vaishnavi*

**Math**

I'm trying to figure out the mode and modal class and the numbers that are the mode are 17, 20, 24, 25, 31, 33 from a set of numbers. (I already figured that part out). My question is what of those numbers is the modal class or in other words what is a modal class as opposed ...
*November 7, 2013 by Anonymous*

**Math**

The beginning tennis class has twice as many students as the advanced class. The intermediate class has three more students than the advanced class. How many students are in the advanced class if the total enrollment for the three tennis classes is 39? A. 10 B. 15 C. 9 D. 12 ...
*March 22, 2013 by Amy*

**math**

I am so bad at word problems! Help me find out how to figure this one out. 1/5 of the boys are absent and 2/5 of the girls are absent in Drew’s class. Bert thinks that you multiply, so his answer is 2/5 of the class are out. Elmo thinks that means 3/5 of the class is out. ...
*February 1, 2011 by Malena *

**math**

The ratio of boys to girls in Mr. Joiner’s class is 5 to 7. If there are 15 boys in the class, how many total students are in the class?
*December 7, 2009 by student*

**math**

The ratio of boys to girls in Mr. Joiner’s class is 5 to 7. If there are 15 boys in the class, how many total students are in the class?
*December 13, 2009 by Anonymous*

**physics**

what is is called (both terms) when somthing makes a sound but no one is aroun to here it? Plz this is 4 my h work It could be many terms. Unobserved Source comes to mind. Surely you are not wasting much class time in physics class on this.
*September 6, 2006 by jonathan*

**math repost Please Help!**

Hello, In a class of 24 students, every student flips fairly two coins 40 times each and records the results. Assume that the class obtained the expected results when they conducted the experiment. a. Make a bar graph illustrating the combined class results b. explain why an ...
*February 7, 2010 by joe*

**Calulus**

Hi there I need help with one of the problem from my homework package. This week for my calculus class, we were learning how to do partial derivative and finding the tangent of the plane. So I do not know how to approach this problem. Please help me by how to derive this ...
*October 25, 2009 by shylo*

**Math**

Last year,your class held a fundraiser and donated 850 dollars to a local charity.This year,your class's donation increased by 24%.How much did your class donate this year?
*November 14, 2011 by Sarah*

**English**

What's your favorite class? 1. It's a math class. 2. It's math class. 3. It's math classes. 4. Math class is my favorite. 5. Math classes are my favorite. 6. A math class is my favorite. (Which answers are correct? Are all correct?)
*March 14, 2010 by rfvv*

**Algebra**

In a certain math class, each studen has a textbook, every two students share a books of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75, how many students are in the class? How many ...
*December 10, 2006 by Joeis*

**PHYSICS**

Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #3: A 30 kg kid on rollerskates is being pushed by his mom with a force of 10 ...
*March 7, 2013 by Anna *

**Math**

There are 4 more girls in Mrs. Chang's class than Mr. Blackwell's class. Five girls moves from Mr. Chang's class to Mr. Blackwell's class. Now there are twice as many girls in Mr. Blackwell's class as there are in Mrs. Chang's. How many girls were in Mr. Blackwell's class to ...
*October 8, 2012 by Nathan*

**10 grade algebra**

please help with this problem Your dad is taking Biology as part of the veterinarian program at the local community college. This semester he will spend a total of 40 hours in the biology lab, and he will take notes in class 6 hours per week. Define a variable for the number ...
*March 27, 2013 by mary*

**Math 140**

To help pay for a class trip at the end of the senior year, the junior class at a high school invests $1800 from a fund-raiser in a 18-month CD paying 2.6% interest compound monthly. Determine the amount the class will receive when it cashes in the CD after 18 months.
*July 19, 2013 by Pamela*

**algebra...**

In a school, there are 4 more students in Class A than in Class B, and 4 more students in Class B than in Class C. As a reward for good behavior, a teacher decides to give out some sweets. Every student in class C got 5 more sweets than every student in Class B, and every ...
*March 12, 2013 by please...help...Ms.Sue....*

**4 grade math**

If ms smith class read for 450hrs this month. Ms Brown class read two-thirds the number of hrs read by ms smith class. Ms James class read twice the hrs read by ms brown class. There are 90 students in these 3 classrooms. What was the average number of hrs read by each student?
*April 25, 2013 by marsha*

**PHYSICS**

Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #2: Suppose the spring in a pinball machine has a spring contant of k=400 N/m...
*March 7, 2013 by Anna *

**statistics**

Use this table to complete the tasks that follow it. Height (in inches) Frequency 50-52 5 53-55 8 56-58 12 59-61 13 62-64 11 Identify the class width. Identify the midpoint of the first class. Identify the class boundaries of the first class. Give the relative frequency for ...
*November 13, 2009 by sandra*

**5tth grade math**

every student in a second grade class sends a valentine to each of the other students in the class, for a total of 306 valentines.How many students are in the class.
*February 10, 2011 by tryston*

**statistics**

Use this table to answer the questions. Height (in inches) Frequency 50-52 5 53-55 8 56-58 12 59-61 13 62-64 11 1. Identify the class width. 2. Identify the midpoint of the first class. 3. Identify the class boundaries of the first class. 4. Give the relative frequency for ...
*May 19, 2010 by molly*

**Stats**

Use this table to answer the questions. Height (in inches) Frequency 50-52 5 53-55 8 56-58 12 59-61 13 62-64 11 1. Identify the class width. 2. Identify the midpoint of the first class. 3. Identify the class boundaries of the first class. 4. Give the relative frequency for ...
*December 16, 2010 by Todd*

**Math**

I think maybe this is a hoax, I listed same problem that I am having twice and no one can answer it? It is in my eitgth grade class. Let's see if this is for real what is 2+2?
*October 18, 2012 by Maria*

**Physics**

Trying to be on time for class, a girl moves at 2.4 m/s down a 52 m-long hallway, 1.2 m/s down a much more crowded hallway that is 79 m long, and the last 25 m to her class at 3.4 m/s. How long does it take her to reach her class?
*September 18, 2012 by Cynthia*

**math**

Four well-defined social classes (1=low and 4=high) exist in a country. If X is a random variable giving the social class of the son of a father from social class 1, the distribution of X is as follows: we have a small chart that has son's class, X and a 1,2,3,4 next to it ...
*December 1, 2010 by m*

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