Number of results: 35,506
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
Half the students in Max's class volunteer at the local community center. 15 students do not volunteer.if there are 12 boys in Max's class , how many girls are in Max's class? I am having a brain freeze!
September 4, 2014 by Anonymous
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
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
A science class has 3 girls and 3 boys in the seventh grade and 4 girls and 1 boy 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 boys?
February 14, 2016 by Brooke
True or False: The ratio of boys to girls in Miss Bennet's class is 2:1. This ratio means there are two boys and one girl in Miss Bennet's class.- Is it true or False, and WHY?
September 23, 2012 by Losa
Here is the scenario plus the questions. Jenny Reid is a middle-school teacher in a suburb of Atlanta. Her sixth-grade students are primarily majority group students from middle-class backgrounds. The children in her class are good students, well motivated, and reasonably well...
June 10, 2010 by Rayna
The number of boys in a certain class exceed the number of girls by 7. If the number of boys is 5/4 of the number of girls, how many boys are there in the class? The choices of answers are: a) 21 b) 28 c) 35 d) 42 e) 63 I figured out that the answer is 35, but I did it by ...
February 12, 2010 by sylvie
Each day, Mr. Samms randomly chooses 2 students from his class to serve as helpers. There are 15 boys and 10 girls in the class. What is the probability that Mr. Samms will choose 2 girls to be helpers
May 16, 2012 by MItchell
there are 15 boys and 10 girls in your class. a faur member committee is to befromedfrom the student of your class. in how many ways this can be done if the comittee consists at least three girls
March 7, 2016 by saurabh
The ratio of boys to girls in a class room was 9:8. Half of the girls left the classroom, and then there were 15 more boys than girls. A. How many children were in the classroom in the beginning B. How many girls left the classroom?
August 7, 2014 by john
The ratio of boys to girls in a class room was 9:8. Half of the girls left the classroom, and then there were 15 more boys than girls. A. How many children were in the classroom in the beginning? B. How many girls left the classroom?
August 8, 2014 by Nexelen
This table shows the numbers of students in different classes that are in the math club. Students in math club Boys / Girls Mrs.Smith 3 / 4 Ms.Jones 4 / 6 Mr.Brown 3 / 4 a. What fraction of the students in the math club are boys from Mrs. Smith’s class? b. What fraction of the...
January 6, 2015 by Anonymous
There are 12 girls in one of the fifth grade classes. The number of girls is two-thirds the number of boys, b. The number of boys can be found using the equation 2/3b=12. How many boys are in the class?
April 4, 2013 by Anonymous
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
The ratio of adults to girls to boys on a class field trip was 1:4:5. If the trip included 6 more boys than girls, how many adults were with the group? A. 3 B. 4 C. 6 D. 8 E. 12
June 3, 2014 by Anonymous
Mrs. Roberts organized her class into four equal sized teams. Boys make 3/4 of each of the teams. If there are 2 girls on each team, how many students are there in the whole class? Please answer and explain.
May 23, 2013 by Anonymous
math ms. sue help me plox ASAP!!!!!!!
macs farm has a total of 18 horses and 27 cows. what is the ratio of horses to cow in simplest form? a class has 27 students. fifteen are boys and the rest are girls. what is the ratio of girls to total students? the cost of your favorite lemonade is $3.84 for 3 gallons. write...
November 4, 2013 by recon sniper
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
There are 24 students in a class. One student will be randomly selected as representative on the student council. if there are 9 boys and 15 girls in class, what is the probability that the representative will be a boy?
March 6, 2016 by kim
At a sports carnival,the ratio of number of pupils sent by school A,B and school C to the event was 1:2:3. The number of boys from school A and the number of girls from school B were the same. The ratio of the number of girls from school C to the total number of girls was 7:10...
September 15, 2015 by koh
Mr. Rad's class was invited to go on a field trip after school hours. Fourteen of the students in his class went on the field trip, and 6 of them were boys. The expression below can be used to find g, the number of girls in Mr. Rad's class that went on the field trip. 6 + g = ...
December 14, 2013 by Eden S.
Ms Price has three times as many girls as boys in her classroom Ms Lippy has twice as many girls as boys. Ms. Price has 60 students, and Ms Lippy has 135 students. If the classes were combined into one, what would be the ratio of girls to boys?
October 20, 2009 by Hector
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
Please help... The ratio of the number of boys to that of girls in Class A is 2 : 3. The ratio of the number of girls who wear glasses to the number of girls who do not wear glassesis 1:3. If there are 12 more girls than boys, how many girls wear glasses?
April 14, 2015 by JJJ.Sara
Probability i need help
In a form 1A class there are 25 boys and 20 girls.in a form 1B there are 20boys and 15girls.A learner is choosen at random from each class.find the probability that (a):both learners are boys (b):the choosen learners are of different sexes????
October 10, 2015 by Collins
Ms. Ng has a class that is half boys and half girls. Given findings on gender differences in verbal and spatial ability, which of the following is she most likely to find? A) few if any noticeable differences in the achievement of boys and girls B) the highest reading group ...
September 25, 2013 by Lor
If the ratio of girls to boys on the track team is 5 to 6 which of these shows possible numbers of girls to boys on the track team? A.24 girls 20 boys B.50girls 56 boys C.60 girls 50 boys D. 20 girls 24 boys D?
November 27, 2012 by Jerald
Half the pupils in Mrs. Cross's class are boys. Half the boys have blue eyes. Half the blue-eyed boys have blond hair. There are three boys with blue eyes and blond hair in Mrs.Crooss's class. How many pupils are there total in that class.
December 13, 2009 by Tao
What percentage of the total students chose skateboarding? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank you
March 31, 2015 by Nikita
Counting and Probability
There are 5 boys and 4 girls in my class. All of them are distinguishable. In how many ways can they be seated in a row of 9 chairs such that at least 2 boys are next to each other?
October 20, 2015 by Mr. Alexander
Mrs. Baker has to choose 2 students to lead the class field trip. If she draws from a list of 6 boys and 6 girls, what is the probability that 2 girls will be drawn? (Please Help!) A.1/7 B.5/24 C.5/22 D.5/6
April 24, 2011 by math
In Class A there are 80 the Boy to Girl ratio is 3 to 5. In Class B the boy to girl ratio is 3 to 2. If the 2 classes combined have an equal number o fboys and girls how many students are in class B?
August 19, 2013 by Jackie
1. if 60% of 3/5 of a number is 36, then the number is......... Pls show working. 2. the average weight of 16 boys in a class is 50.25kg and that of the remaining 8 boys is 45.15kg. Find the average weight of all the boys in the class.
April 20, 2015 by Bright
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
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
At Central High School, the sophomore class has 60 more students than the freshman class. The junior class has 50 fewer than twice the number of students in the freshman class. The senior class is three times as large as the freshman class. If there are a total of 1,424 ...
April 27, 2015 by Anonymous
Mr. Miller teaches a class with 15 boys and 5 girls. If he randomly chooses a student from the class, what is the probability that the student chosen is NOT a boy? A) .25 B) .33 C) .50 D) .75
January 27, 2011 by Asher
There are 7 classes for first year students. Each class is composed of about 30 students. Emily is a student of Class 1-2. One of his classmates who went to the same elementary school asks: Which class are you in? What is the answer to the question? 1. I'm in Class 1-2. 2. I ...
March 23, 2016 by rfvv
A grade six class is having a fundraiser. The class boys have three bags of apples. Each bag has 24 apples. The total cost of the three bags of apples is $12.24. The class sells the apples for 0.75 each. How much will the class gain per apple?
May 7, 2015 by Lori