After 4 new students joined a class, the class had 32 students.
Which equation can be used to find n, the number of students in the class before the 4 new students joined?
A. n/4=32
B. n−4=32
C. 4n=32
D. n+4=32
N+4=32
The answer is D!
To find the equation that can be used to find the number of students in the class before the 4 new students joined, we can approach it step-by-step.
Step 1: Let's assume the number of students in the class before the 4 new students joined is n.
Step 2: Four new students joined the class, so we can express the new total number of students as n + 4.
Step 3: It is given that the class had 32 students after the 4 new students joined, so we can write the equation n + 4 = 32.
Therefore, the correct equation is D. n + 4 = 32.
To find the equation that can be used, let's break down the information given.
We are told that after 4 new students joined the class, the class had a total of 32 students.
Let's use a variable to represent the number of students in the class before the new students joined. Let's call this variable "n".
We can now write an equation based on the given information. Since the class had 32 students after the new students joined, the equation becomes:
n + 4 = 32
This equation represents the total number of students in the class before the new students joined.
So, the correct equation is option D: n + 4 = 32.