Question

The ratio of the number of girls to the number of boys was 3 to 7. If 2,520 students were present, how many were girls and how many were boys

Answer 1

Answer: 756: 1764

756 girls and 1,764 boys

Step-by-step explanation:

Girls to boys- 3:7

Total Students: 2,520

Using the information given, you will create an equation.

3x + 7x = 2,520

10x = 2,520

X = 252

Now you plug-in 252 for x in your ratio

X is the the number of people

3(252) : 7(252)

756: 1764

Now when you add these numbers, you get 2,520 which is the total number of students in all. This proves your answer to be correct.

Hope this helps!

Answer 2

Answer:

girls=3 x 252=756

boys=7 x 252=1764

Step-by-step explanation:

girls:boys=3:7

girls=3/3+7=3/10

boys=7/10

girls=3 x 252=756

boys=7 x 252=1764.....................