Question

7. In the high school band there are 2

percussionists on the sideline to every 13
marching instruments. If the high school band
has 150 total members, then how many
percussionists are on the sideline?

Answer 1

Answer: Let's call the number of percussionists on the sideline "x".

Since the ratio of percussionists to marching instruments is 2 to 13, for every 2 percussionists, there are 13 marching instruments.

So the total number of band members is 2x + 13x = 15x.

We know that the total number of band members is 150, so we can write an equation to solve for x:

15x = 150

Dividing both sides by 15:

x = 10

So there are 10 percussionists on the sideline.

Explanation: