SOLUTION: Write a proportion for the problem & solve: Mr.Bentley has 25 students. The ratio of boys to girls is 3:2. How many boys does he have in his math class?
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Question 402556: Write a proportion for the problem & solve: Mr.Bentley has 25 students. The ratio of boys to girls is 3:2. How many boys does he have in his math class? Answer by algebrahouse.com(1659) (Show Source):
You can put this solution on YOUR website! "Write a proportion for the problem & solve: Mr.Bentley has 25 students. The ratio of boys to girls is 3:2. How many boys does he have in his math class?"
25 total students
ratio of boys to girls
= 3:2
That means the ratio of boys to total is 3:5
3 boys/5 total = x boys/25 total {this is the proportion}
5x = 3(25) {cross-multiplied}
5x = 75 {multiplied 3 by 25}
x = 15 boys {divided both sides by 5} www.algebrahouse.com
