Answer:
The least number of people that can be in the marching band is 30
Explanation:
Given that the high school marching band rehearses with either 6 or 10 members in every line.
the least number of people that can be in the marching band is the Lowest common multiple LCM of 6 and 10.
[tex]\begin{gathered} 6=2\times3 \\ 10=2\times5 \\ \text{LCM}=2\times3\times5=30 \end{gathered}[/tex]The least number of people that can be in the marching band is 30
