# math

posted by .

If a 4th grade with 140 students has 3 boys for every 4 girls how many are girls? how many are boys?

• math -

Set up a proportion and cross multiply. Let x = the number of boys

3/7 = x/140
7x = 420
x = 60

• math -

try (20*4)+(20*3)

• math -

there are 80 fourth graders in school of these, 35 were boys. what fractional part of the fourth graders were girls

• math -

jskvhaklhv
hvla
avugalivia
the
cakiucdnla

## Similar Questions

1. ### Math

For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a porportion to predict the number of boys taking the classes …
2. ### 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 …
3. ### math

franklin school has 3 boys for every four girls in the fifth grade. there are 140 students in the fifth grade. a.how many are boys?
4. ### math

franklin school has 3 boys for every 4 4 girls in fifth grade . there were 140 students in the fifth grade. A.how many are boys B.how many are gorls
5. ### Math

There are twice as many girls as boys in the 4th grade classes at Joe's school. There are a total of 81 4th graders. How many boys and girls are there in the 4th?
6. ### math

franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade. A. how many are boys and how many are girls?
7. ### math

In a class of 80 seniors, there are 3 boys for every 5 girls. In the junior class, there are 3 boys for every 2 girls. If the two classes combined have an equal number of boys and girls, how many students are in the junior class?
8. ### Math

Students surveyed boys and girls separately to determine which sport was enjoyed the most. After completing the boy survey, it was determined that for every 3 boys who enjoyed soccer, 5 boys enjoyed basketball. The girl survey had …
9. ### Math

What percentage of the students who chose biking were girls?
10. ### Math

Which table correctly fills in the ratio table below?

More Similar Questions