In the high school band, there are 2 percussionists on the sideline for every 13 marching instruments If the high school band has 150 total members how many percussionists are on the sideline?
The ratio of percussionists to total band members is 2:(2+13), or 2:15.
As ratios are equal to fractions, we can put this in an equation:
\({2\over15}={x\over150}\).
Cross-multiply to solve:
\(300=15x\)
\(20=x\).
\(\boxed{\textbf{There are 20 percussionists on the sideline.}}\)
Hope this helped,
