Question

There are 450 children that attend a high school. Of those students. 23%

are in the marching band. How many students are not in the marching
band?​

Answer 1

The number of students not in the marching band is 346.5

Explanation:

Given as :

The total number of children that attend a high school = 450

The percentage of students in the marching band = 23 %

Let The number of students not in the marching band = x

Now ,

∵ The percentage of students in the marching band = 23 %

∴ The percentage of students not in the marching band = 100 % - 23 % = 77 %

So, The number of students not in the marching band = 77 % of the total number of students in the school

I.e The number of students not in the marching band = 77 % × 450

Or , The number of students not in the marching band =
`(77)/(100)` × 450

∴ The number of students not in the marching band = 346.5

And The number of students in the marching band = 450 - 346.5 = 103.5

Hence The number of students not in the marching band is 346.5 Answer