Question

Write an equation to represent the given unit rate: For every class, there are 25 students.

a) x = 25y
b) 25x = y
c) y = 25x
d) 25y = x

Answer 1

The equation to represent the unit rate 'for every class, there are 25 students' is y = 25x, where x is the number of classes and y is the number of students.

Step-by-step explanation:

To represent the unit rate "for every class, there are 25 students", we need to establish a relationship between the number of classes (let's call this x) and the number of students (let's call this y). The phrase suggests that each class has exactly 25 students, regardless of the number of classes. Therefore, if we have one class (x = 1), we would have 25 students (y = 25). If we have two classes (x = 2), we would have 50 students (y = 50), and so on. This relationship is proportional and can be represented by the equation y = 25x, which means that the total number of students (y) is equal to 25 times the number of classes (x).