SOLUTION: There are 4 times as many boys as girls in a certain English class. if there are n girls how many boys are there? How many students in all? State by an equation that there are 30 s

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: There are 4 times as many boys as girls in a certain English class. if there are n girls how many boys are there? How many students in all? State by an equation that there are 30 s      Log On


   



Question 1046538: There are 4 times as many boys as girls in a certain English class. if there are n girls how many boys are there? How many students in all? State by an equation that there are 30 students in the class. Find the number of boys.
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
b+g = 30 (1)
b = 4g substitute in (1)
4g+g = 30
5g = 30
g = 6 there are 6 girls and
4(6) = 24 boys (6 times more boys than girls)