Given:
In Ms. Perron’s class, 75% of the students are boys. There are 18 boys in the class.
We need to determine the total number of students in Ms. Perron's class.
Total number of students:
Let n denote the total number of students in Ms. Perron's class.
Thus, we have;
[tex]\frac{75}{100}n=18[/tex]
Multiplying both sides of the equation by [tex]\frac{100}{75}[/tex], we get;
[tex]n=18\times \frac{100}{75}[/tex]
Simplifying, we get;
[tex]n=\frac{1800}{75}[/tex]
[tex]n=24[/tex]
Therefore, the total number of students in Ms. Perron's class are 24.