math

posted by .

There are 57 students in class of 6th and 7th graders. There are twice as many 6th graders. How many 6th graders?

• math -

divide 57 into 3 equal parts. each part is thus 19.

So, two of the parts are 6th graders: 38
The other part are 7th graders: 19

Similar Questions

1. percents

there are 1000 students. The 6th grade surveyed.12% of the students brunge lunch from home.suppose 24 6th graders do this.how many 6th graders are at the school?
2. math

Ok, the problem says: a Middle school has 125 6th graders, 150 7th graders, and 100 8th graders. Which statement is NOT true?
3. math

A team is made up of 6th 7th and 8th graders in the ratio of 234. How many 6th graders will be on a 36member team?
4. math

In polk middle school, 45% of the students are 6th graders, 35% of the students are 7th graders and the remainder are 8th graders. Would a circle graph of this data that had 3 sections each with a central of 120% be misleading?
5. math

mrs. karson's music class includes both 6th and seventh graders. the ratio's of 6th graders to students ine the class is 4:7. there are 9 seventh graders in the music class how many students sre in the class?
6. Math

Need help on this question: There are 32 sixth graders and 44 seventh graders in the video gaming club. Which ration is greatest?