Sunday

December 21, 2014

December 21, 2014

Number of results: 11,784

**Math**

a class has 10 boys and 5 girls; three students are selected from the class at random one after other. the probability that the first two boys and the third is a girl??
*August 28, 2012 by math help2*

**Maths**

Question: total of 40 students in class, boys number is double of the girls number. How many boys & girls in the class? Working as follow: a = boy b = girl 2a + b = 40 2a + 2a = 40 4a =40 a =10 b=2a b = 2x 10 b = 20 So a=10, b= 20. Total only 30, not 40 . Why? Thanks
*May 21, 2014 by Josh*

**Maths**

Question: total of 40 students in class, boys number is double of the girls number. How many boys & girls in the class? Working as follow: a = boy b = girl 2a + b = 40 2a + 2a = 40 4a =40 a =10 b=2a b = 2x 10 b = 20 So a=10, b= 20. Total only 30, not 40 . Why? Thanks
*May 22, 2014 by Josh*

**Math**

if the ratio of the girls to boys in a classroom is 2 to 3 why isnt it correct to say 2/3 (two thirds) of the class are girls.
*August 12, 2012 by Danny*

**math **

The ratio of girls to boys in the junior high band is 5 to 7. At the beginning of the year, there were 72 students in the band. By the end of the year, the ratio of girls to boys was 3 to 4. If there are now 48 in the band, how many girls joined the band during the school year.
*September 16, 2014 by tina m*

**Maths**

In the village school the ratio to boys to girls is 5:6. there are 175 boys. how many girls. please show me full working out but don't give me the answer as I want to find it out for myself. I just need to know how to do it. Thank you
*November 25, 2014 by Anonymous*

**Math**

If girls made “A’s” on a ratio of 7 to 5 compared to boys (of course this is not in our school), how many “A’s” would the boys make, if the girls made 92?
*August 24, 2011 by Anonymous*

**MATH**

the ratio of girls to boys is 3:5 .If there are 15 boys in the classroom ,how many students are there total
*February 19, 2014 by Anonymous*

**Math**

Solve. There are 18 boys in a class. There are w fewer boys than girls. How many students are there in the class?
*April 17, 2013 by Janey*

**Stats**

How many ways to choose 2 boys and 3 girls from a class of 10 boys and 15 girls? Would you do: 10C2=45 15C3=455 (45)(455)=20,475?
*February 8, 2014 by Ashley*

**math**

If there are 8 boys and 9 girls in a classroom , what is the ratio of boys to girls ?
*November 6, 2012 by Daniel*

**math**

The ratio of boys to the total number of students is 2:5. If there are 123 girls, how many boys are there? I estimated 49.2, is that correct?
*March 23, 2013 by Sandy*

**Math**

The ratio of boys to girls in a class is 3 to 5. What percentage of the class are girls?
*December 6, 2011 by Russell*

**math**

the ratio of boys to girls in a club is 7:4, there are 21 fewer girls than boys , what is the total number of children in the club?
*December 11, 2014 by Anonymous*

**ratio**

at a playground, the ratio of boys to girls was 5:6. if 2 over 5 of the boys and 1 over 2 of the girls left, there were 54 children in the playground. how many boys were at the playground at first?
*March 17, 2012 by Anonymous*

**math**

in a class there are 4 boys for every 6 girls. there are 54 pupils. how many boys are there?
*December 28, 2012 by che*

**math/hurry**

there are 3 boys for every 4 girls.how many are boys in a class of 42?
*January 10, 2013 by mel*

**math**

if the ratio of boys to girls is 3/4 and there are 49 students how many boys are there?
*February 14, 2013 by lisa*

**math**

hello im having problems with my math 1 Wells College in Aurora,New York was previously an all -girls college.In 2005,the college began to allow boys to enroll. By 2012, the ratio of boys to girls was 3 to 7. if there were 200 more girls then boys in 2012, how many boys were ...
*October 1, 2014 by mariam*

**maths**

5/8 of a class is girls what is the percentage of boys[ b] if the class has 32 student how many are boys
*November 12, 2012 by jelaniegabrael*

**Math**

There are 24 students in a class, 16 are girls and 8 are boys. What is the fraction of boys in the class?
*November 20, 2012 by Dar*

**math**

there are 18 boys in a class. there are W less boys than girls. How many students are in the class?
*March 19, 2014 by Anonymous*

**math**

there is a graph, and the title is Students who dress up for spirit week.60 grade 7 boys did,70 grade 7 girls did,70 grade 8 boys did, and 80 gr 8 girls did. the question is what this graph is showing. I put the graph is showing how many gr 7 boys dressed up for spirit week, ...
*January 31, 2009 by beeca*

**maths**

There ere 258 pupils in hte hall.If 1/3 of the boys left the hall and 22 girls entered the hall, there would be an equal number of boys and girls in the hall. 1) How many boys were in the hall at first? 2)Ho many more boys than girls were in hte hall at first?
*March 26, 2012 by srihita*

**3rd Grade Math**

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? How can I explain this to my 8yr old in 3rd grade? I've got myself so confused in the process of trying to figure it out ...
*October 2, 2012 by Lisa*

**Math**

2/3 of miss lina's class were boys. there were between 2 and 14 boys. One day, twin girls joined the class. Now 3/5 of the students are boys. how many students are in miss lina's class now?
*September 10, 2014 by Anonymous*

**Math**

if 3/5 of the class are boys and there are 12 more boys than girls. How many girls are there in the class?
*June 4, 2013 by Jenna*

**math**

If the ratio is students in a class is 8 to 5 and there are 135 more boys then how many girls are in the class
*November 12, 2014 by Anonymous*

**RATIO**

In a school gym, the ratio of the number of boys to the number of girls was 4:3. After a 160 boys left the gym, the ratio became 4:5. How many girls was in the gym?
*March 3, 2014 by Anonymous*

**6th grade Math**

The number of girls in a class is 70% of the number of boys. If the class has 25 boys, how many girls are in the class?
*January 14, 2010 by Vickie*

**math**

On a class trip there wre 30 more girls than boys.The total number of students on the trip was 210.Write and solve an equation to find the number of girls and the number of boys on the class trip.
*January 28, 2014 by ashley*

**math**

There were 20% more boys than girls in a swimming club. After 50 girls left, there were twice as many boys as girls in the club. How many boys were there in the club?
*November 30, 2012 by jane*

**math**

There were 20% more boys than girls in a swimming club. After 50 girls left, there were twice as many boys as girls in the club. How many boys were there in the club?
*December 2, 2012 by jane*

**math**

there are 15 boys and 18 girls in fifth grade. Find the ratio of boys to girls in fifth grade.(how do I get the answer) can someone show me how to work the problem
*October 1, 2012 by dan*

**algebra**

the number of boys is ten less than double the number of girls, if the total number of students is 38 how many boys and girls are in the class
*October 6, 2010 by Anonymous*

**algebra2**

in the chess club, the ratio of boys to girls is 6:5.there are three more boys than girls in the club. how many members are in the club?
*October 12, 2010 by naomi*

**math **

9. In Mr.chin's math class there were g girls and b boys. The number pf girls was 5 less than twice the number of boys. What is the value of g in terms of b? this is what I have so far: 2n-5
*August 4, 2014 by David*

**Math**

A class consists of 16 boys,12girls, and 2 teachers. How many different committees of size eight can be formed if the committee must consist of 4 boys 3 girls and one teacher?
*February 13, 2013 by Abby*

**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*

**statistics**

Please analyze the following data using the T-test for Unpaired data: A school district wants to determine if the girls are equal to boys in test scores. They took a random sample of 22 8th grade girls and 24 8th grade boys. The district looked at recent CAT scores and found ...
*February 28, 2010 by Barbara*

**math 4**

at the 6th grade school dance, there are 132 boys, 89 girls, and 14 adults. A. write a ratio of number of boys to girls. b. write the same ration using another form (A:B vs A to B) c. write the ratio of number of boys to number of adults. d. write the same ratio using another ...
*September 10, 2013 by Rem*

**Math**

At a T.I concert, the ratio of the number of girls to the number of boys is 2:7. If there are 250 more boys than girls, how many girls are at the concert?
*August 10, 2014 by Tristan*

**Math**

A math class has girls and boys in the seventh grade and girls and boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both girls? Write your ...
*May 1, 2013 by MADISON*

**Math HELP!**

A class has 27 students. Fifteen are boys and the rest are girls. What is the ratio of girls to total students? A. 12:15 B. 15:12 C. 27:12 D. 12:27 Is the answer A?
*November 6, 2014 by Callie*

**Math**

A class has 27 students. Fifteen are boys and the rest are girls. What is the ratio of girls to total students? 12 : 15 15 : 12 27 : 12 12 : 27
*November 20, 2012 by Eric*

**maths project**

in a class there are 46 students out of them 20 are girls and 26 are boys,find ratio
*November 20, 2012 by suraj*

**AED 204**

Check the Main forum to see which discussion cluster your teacher has assigned you to work with. In this cluster, you and your peers must discuss the effect of at least three of the above misconceptions on education. The one that she assigned me is Boys are more interested in ...
*June 15, 2010 by Rayna *

**math**

the ratio of girls to boys in the chorus is 3:2. If there are 50 students in chorus, how many boys are there and how many girls?
*November 30, 2014 by terry*

**Math**

There are 1170 students in a school. The ration of girls to boys is 23 : 22. The system below describes..? relationships between the number of girls and the number of boys. g+b=1170 g/b=22/23 a. Solve the proportion for g. b. Solve the system. c. How many more girls are there ...
*March 31, 2009 by Angie*

**Math**

A Classroom contains a total of 27 students. The number of girls is 7 more than three the number of boys. How many boys are in the class?
*November 14, 2010 by Camille*

**maths**

Suppose that in a class there are 8 people, 5 boys and 3 girls. We want to choose a team of 3 people with 2 boys and 1 girl. How many different groups can be formed?
*September 2, 2013 by Susie*

**math**

There are 28 students in Ms. Rainbow's Math class. The number of girls is 10 less than the number of boys. If there are b boys in the class, write an equation to correctly model the situation.
*November 5, 2011 by Anonymous*

**Math**

Nicole drew a circle on the chalkboard that had a radius of 15 cm. Which is closest to the circumference in centimeters of the circle she drew on the board? A.30cm B.45cm C.24cm D.90cm D Which statement is not supported by the information in the graph? 6th graders 188 boys 192...
*June 4, 2013 by Jerald*

**Math**

The ratio of the width to the height of most television screens is 4 to 3. If a television screen is 28 inches wide how tall would the screen be? A.12 B.15 C.21 D.25 C? The ratio of girls to boys in Mrs.Hughes classes is 9 to 10. If there are 81 girls in her glasses how many ...
*November 26, 2012 by Jerald*

**math**

In a certain class there are 12 boys and 18 girls. If the class average for an algebra exam is 90 and the boys' average score is 87, what is the girls' average score?
*July 16, 2014 by John*

**maths**

there are 100 boys, 80 girls, and 20 teachers. In how many ways can a group of 5 (2 girls, 2 boys and a teacher) be selected?
*July 15, 2008 by matt*

**mathss**

Can someone explain how to do this: There are 100 boys , 80 girls, and 20 teachers. Out of these, how many ways can 2 girls, 2 boys and 1 teacher (all together in a group of 5) be chosen?
*August 19, 2008 by Rebekah*

**Finite Math**

A student dance committee is to be formed consisting of 3 boys and 4 girls. If the membership is to be chosen from 7 boys and 6 girls, how many different committees are possible?
*December 3, 2012 by Chris*

**math**

the ratio of girls to boys in the fifth form is 5;4 there are 144 pupils in the fifth form. how many are girls and how many are boys?
*April 22, 2010 by joe*

**math**

A club has 32 members only 1/4 are boys. How many more boys would they need to have at least 1/3 boys if no more girls are added?
*September 14, 2009 by jake*

**math **

If a 4th grade with 140 students has 3 boys for every 4 girls how many are girls? how many are boys?
*March 23, 2011 by lovecaandy*

**Math**

Im trying to help my daughter with some math homework and Im stuck can you help me please this is the problem Jeremy has been home sick with the flu for the last 7 days. While absent from school, he got 31 get well cards from friends. there were 5 more cards from girls than ...
*November 15, 2012 by Jay*

**math**

there are 40 pupils in a class. each girl is given 5 books and each boy is given 4 books.the girls have 65 more books than the boys. how many more girls than boys are there in the class?
*June 13, 2013 by kyla*

**algebra1**

there is an class of 28 students.13 students are girls. what is the ratio of girls to boys in the class?
*May 27, 2011 by Anonymous*

**math**

Five boys and seven girls in a history class will go on a field trip during the Easter vacation. They make a committee of three members to prepare for the trip. What is the probability that this committee will consist of three boys? What is the probability that the committee ...
*January 12, 2013 by meep*

**ACT Math**

Of the 60 students in a school, 24 are currently studying chemistry. Exactly 16 of the girls in the school are not currently studying chemistry. The number of girls in the school is 33. How many boys are currently studying chemistry? Correct answer is 17. How did they get that...
*August 27, 2013 by Java*

**problem solving**

A play is being put on at the school. There are 9 possible roles for girls who are trying out and 10 roles for boys who are trying out. If 16 girls and 12 boys try out, and everyone acts perfectly the same as one another, what percent of chance do the girls have of getting in...
*April 13, 2010 by Jill*

**Diversity in the Classroom**

I need to explain why these misconceptions are not true. Could you please help me with this? 1. Boys who participate in the arts are more likely to be homosexual. 2. Girls are more interested in domestic arts than boys. in auto shop and wood shop than girls are. 4. Boys are ...
*April 25, 2009 by B.B.*

**statistics**

A professor who teaches a number of courses is choosing a team of 4 boys and 3 girls from among his graduate students to help with the setup of the labs in his courses. He has 12 graduate students of 6 boys and 6 girls. Assuming that the order of students does not matter, in ...
*November 13, 2014 by angela*

**Statistics**

In planning a family of 4 children assume boys and girls are equally likely on each birth. Find (i) the probability distribution (ii) the expected number of boys (iii) the standard deviation of the number of boys.
*March 17, 2011 by Donald Crentsil*

**statistics**

A sixth form class consists of 6 girls and 9 boys. Three students from the class are chosen at random. The number of boys chosen is denoted by the random variable X. Show that a)P(X=0)=120/2730 b)P(X=2)=1296/2730
*December 3, 2011 by Nabiha*

**Math**

There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that if she randomly selects one student from her classroom the probability that it is a boy is 3/4. Which mistake did Mrs. Johnson make? A. She divided the number of girls by the total number of students. B...
*March 20, 2013 by Willow*

**Math**

There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that if she randomly selects one student from her classroom the probability that it is a boy is 3/4. Which mistake did Mrs. Johnson make? A. She divided the number of girls by the total number of students. B. ...
*March 20, 2013 by Anne*

**Maths**

There were some boys and girls in the school hall at first. 40% of the boys and 10% of the girls left the school hall. As a result, 3/4 of the pupils remained in the school hall.There were 12 more girls than boys who remained in the school hall. how many boys were there at first?
*February 25, 2014 by SRI*

**Math**

A class is made up of 10 boys and 2 girls. Half of the boys wear glasses. A student is selected at random from the class. What is the probability that the student is a boy with glasses? My Question is, I don't know how to do Probability.
*April 27, 2009 by Emily*

**7th grade math**

There are 48 students in a school play. The ratio of boys to girls is 5:7. How many boys are in the school play? Explain how you found your answer.
*November 15, 2011 by Mercedez*

**proof read these 2 sentences**

There are so many gifted athletes on both the boys and the girls side it is unbelievable. On any given Sunday there is a log jam of competitors on multiple tours (AJGA, TJGT, FCWT, etc.) all trying to out shoot each other and go low to take the tournament! should it be the ...
*December 21, 2007 by Anonymous*

**algebra 1**

at a certain high school,350 students are taking algebra. the ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? - How can you write a system of equations to model the situation? - Which equation will you solve for a variable in ...
*January 27, 2013 by lucy*

**math**

In a certain high school class, consisting of 60 girls and 40 boys, it is observed that 24 girls and 16 boys wear eye glasses, if a student is picked at random from this class. What is the probability that student picked at random is a boy, what is the probability that a ...
*February 22, 2013 by suhad*

**Math 132**

There are 7 girls and 6 boys in a class. Suppose five children are randomly chosen to decorate the game room. Given that at least one boy is chosen, what is the probability that exactly two boys are chosen?
*April 5, 2010 by Jess*

**Gen Math**

A school dance has 228 students. There are 63 fewer girls than twice as many boys. How many boys and girls attended the dance?
*February 24, 2013 by Katie*

**math**

there are 32 boys and 24 girls. what re the various number of teams that can be made that would have the same number of boys and girls on each team?
*October 5, 2014 by john*

**child care**

although boys and girls are relatively equal in physical abilities during middle childhood, girls tend to be_____ than boys. a)faster, b)more flexible, c)stronger in their upper bodies, d)much better at throwing
*July 16, 2010 by glenda*

**Theories and issues in working with school-age chi**

According to the National Center for Educational Statistics, which of the following is a false statement? A. Boys are more likely than girls to fail or drop out of school. B. When it comes to grades and homework, boys outperform girls in elementary, secondary, high school, ...
*October 24, 2014 by Amanda*

**math**

a class consists of 24 boys and 16 girls.the average weight of the class is 41.7 kg,and the average weight of the boys is 41.1 kg.Find the average weight of the girls.
*November 24, 2012 by wan*

**ratio **

if 3 out of every 7 student are boys , write equivanent fractions that can be used to determine how many out of 84 are boys. use a variable to represent the number of boys help me please i need it for tomarrow
*February 22, 2010 by marivel*

**math**

the ratio of boys to girls is 9 to 10. There are 189 boysin the school. How many girls are there?
*March 6, 2012 by Anonymous*

**Survey Math **

A survey of 240 10th grade students in a local High School found that there were 140 girls and 100 boys in the grade. Of the 140 girls, 100 preferred gym class while 40 preferred art class. Of the 100 boys, 40 preferred gym class while 60 preferred art class. Construct a data ...
*October 12, 2013 by Alex*

**statistics**

For every 100 births in the U.S., the number of boys follows, approxiamately, a normal curve with a mean of 51 and standard deviation of 5 boys. If the next 100 births in your local hospital resulted in 36 boys (and thus 64 girls) would that be unusual?
*April 5, 2011 by Anonymous*

**ratios**

the ratio of boys to girls is 2 to 5. How many girls are there if there are 56 total kids?
*January 4, 2012 by Anonymous*

**math**

if the ratio of boys to girls is 5:4 and there are 135 student how many are girls
*October 18, 2012 by Anonymous*

**Math**

There are 40 students in a class. There are 4 more boys than girls. How many girls are in the class?
*December 10, 2012 by Help!*

**Estimation and Computation**

The ratio of boys to girls in a class is 2:3. If a student is chosen at random to be on the student council, what is the probability it will be a girl?
*March 28, 2013 by Taylor*

**math**

There are are 20% more girls than boys in the senior class.What percentage of the seniors are girls?
*March 24, 2012 by Shambhavi*

**Statistics**

A researcher performs a hypothesis test to test the claim that among girls aged 9-10, the mean score on a particular aptitude test differs from 72, which is the mean score for boys of the same age. Data were collected from a random sample of 43 girls aged 9-10 years and the 95...
*November 8, 2013 by Katie*

**math**

Please explain in detail how to solve each question: At a certain high school, 350 students are taking an algebra course. The ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? How can you write a system of equations to model the ...
*January 4, 2012 by Jane*

**math**

mrs. cooper's class has 11 more girls than boys. there are 35 students in all. how many girls are there?
*December 15, 2011 by viri*

**aed204**

• Create a 12- to 15-slide Microsoft® PowerPoint® presentation addressing the following points: o Explain ways to debunk three of the five gender misconceptions listed above based on the results of the peer discussion and your own University Library research. o Explain at ...
*May 2, 2010 by scooby*

**ratios**

77 students ratio girls to boys is 7:4, how many girls
*October 9, 2013 by Anonymous*

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