SOLUTION: the ratio of boys to girls in the class was 3 to 2. if there were 12 boys. how many girls were there..... how do you do this?

Algebra.Com
Question 416967: the ratio of boys to girls in the class was 3 to 2. if there were 12 boys. how many girls were there..... how do you do this?
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
the ratio of boys to girls in the class was 3 to 2. if there were 12 boys. how many girls were there..... how do you do this?
---
3 to 2 is the same as 3x to 2x where 2x is the number of girls.
---
3x = 12 (# of boys)
So, x = 4
--
Then 2x = 8 (# of girls)
==========================
Cheers,
Stan H.
==============

RELATED QUESTIONS

The ratio of boys to girls in the class was 4:5. There were 24 people in the class. How... (answered by stanbon,solver91311,richard1234)
the ratio of the number of boys to the number of girls in a class was 2:3 at first. after (answered by robertb)
The ratio of boys to girls at a rock concert was 7 to 6. if there were 1,092 boys how... (answered by richwmiller)
in a class the ratio of boys to girls is 3:2. If there are 11 more boys than girls,how... (answered by richwmiller)
The ratio of girls to boys at the assembly was 3 to 5. If there were 132 girls at the... (answered by Edwin McCravy)
The ratio of boys to girls in the assembly was 5 to 4. If 180 students were in the... (answered by rfer)
The ratio of girls to boys in a class is 9 : 7. If there are 10 more girls than boys, how (answered by ewatrrr)
The ratio of boys to girls in a class is 3:5.if there are 8 more girls than boys,how many (answered by 428225,Gogonati)
the ratio of boys to girls in a class is 2:3. there are 10 boys in the class. how many... (answered by ptaylor)