SOLUTION: mr. winter has a class that has a total of 25 students. the number of girls is 5 less than twice the number of boys. how many boys are in the class?
Algebra ->
Percentage-and-ratio-word-problems
-> SOLUTION: mr. winter has a class that has a total of 25 students. the number of girls is 5 less than twice the number of boys. how many boys are in the class?
Log On
Question 1009031: mr. winter has a class that has a total of 25 students. the number of girls is 5 less than twice the number of boys. how many boys are in the class? Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! We have
g + b = 25 and
g = 2b - 5
Substitute this into the first equations and get
2b - 5 + b = 25
3b - 5 = 25
3b = 30
b = 10 boys
g = 15 girls
