The numberof seventh grades in choir is three times the number of sixth graders. There are 72 seventh graders in the choir. Write and solve an equation to find s, the number of sixth graders that are in the choir.
Let's denote the number of sixth graders in the choir as s.
According to the problem statement, the number of seventh graders in the choir, which is given as 72, is three times the number of sixth graders in the choir. We can express this relationship using the following equation:
3 * s = 72
To find the value of s, we simply divide both sides of the equation by 3:
s = 72 / 3
s = 24
Therefore, there are 24 sixth graders in the choir.