Question

In a science class, the girl-to-boy ratio is 3^ to 7^. If there are 50 students total in the class, how many boys are there?

Answer 1

To find the number of boys in the science class, you can use the girl-to-boy ratio. There are 35 boys in the class.

Step-by-step explanation:

To find the number of boys in the science class, you can first calculate the number of girls using the girl-to-boy ratio. Since the ratio is 3:7, we can set up the equation 3x + 7x = 50, where x represents the multiplier for the ratio. Solving this equation, we get 10x = 50, and dividing both sides by 10, we find that x = 5. Therefore, there are 3x = 3(5) = 15 girls in the class. To find the number of boys, we subtract the number of girls from the total number of students. So, there are 50 - 15 = 35 boys in the class.