In science class, the girl to boy ratio is 3 to 7. If there are 50 students total in the class, how many are boys
Mathematics
MinePlus2
Question
In science class, the girl to boy ratio is 3 to 7.
If there are 50 students total in the class, how many are boys
If there are 50 students total in the class, how many are boys
2 Answer

1. User Answers BodaciousT
I would say that there are 29 boys in the class. 
2. User Answers joaobezerra
Answer:
There are 35 boys in the class.
Stepbystep explanation:
This question can be solved as a rule of three.
In science class, the girl to boy ratio is 3 to 7.
This means that for each 10 students, 7 of them are boys and 3 are girls.
So if for 10 students, 7 of them are boys, how many are boys for 50?
7 boys  10 students
x boys  50 students
[tex]10x = 7*50[/tex]
[tex]10x = 350[/tex]
[tex]x = 35[/tex]
There are 35 boys in the class.