# geometry

if there are 30 students in the classroom,and the ratio for boys to girls is 4:6,how many boys and girls are in the class

1. 👍 0
2. 👎 0
3. 👁 176
1. Let x represent the boys in the classroom. Cross multiply and solve for x.

4/10 = x/30
10x = 120
x = 12

1. 👍 0
2. 👎 0

## Similar Questions

1. ### math

The ratio of boys to girls in a school choir is 4:3. There are 6 more boys than girls. If another 2 girls join the choir, what will be the new ratio of boys to girls?

asked by kaykay on February 10, 2011
2. ### Math

Mr. Kole has 30 students in his class. He has twice as many girls as boys. What is the ratio of boys to total students? 1:3 1:2 2:3 2:1

asked by *Kayla * on August 27, 2015
3. ### MATHS

Two different schools (A and B) have the same number of pupils. The ratio of the boys in school A and the boys in school B is 2:1 and the ratio of the girls in school A and the girls in school B is 4:5. Find the ratio of the boys

asked by LARA on February 2, 2014
4. ### Child, family and community

Which of the following is a responsibility of early educators? A. Set up the center or classroom to invite both boys and girls to all areas. B. Create competitive activities between boys and girls. C. Set up a classroom

asked by Diana on July 9, 2019
1. ### math

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

asked by john on August 7, 2014
2. ### math

The ratio of girls to boys in Liza’s classroom is 5 to 4. How many girls are in her classroom if there is a total of 27 students?

asked by ben on May 14, 2015
3. ### math

if there are 8 boys and 9 girls in Mr.Layden's classroom, what is the ratio of boys to girls.

asked by turi on December 8, 2011
4. ### math

fifteen out of 25 students in Mrs. Smith's class are boys. what is the ratio of boys to girls? i put 1 to 6. is that right?

asked by kamal on January 26, 2011
1. ### maths

There 168 students in a school. There are twice as many girls as there are boys. a) Calculate the number of girls in the school. b) the students are to be divided into seven classes so that each class has the same number of girls

asked by indira on April 18, 2017
2. ### math

the current ratio of boys to girls at a certain school is 2 to 5 . if 12 additional boys were added to the school, the new ratio of boys to girls would be 4 to 9. how many boys currently attend the school?

asked by Anonymous on April 2, 2014
3. ### 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? -

asked by lucy on January 27, 2013
4. ### 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

asked by Anne on March 20, 2013