On a math test,12 students earned an A. This number is exactly 25% of the total number of students in the class. How many students are in the class?
'In this problem I'm not sure whether I'm being asked to solve for one or two unknowns. May I have your help ?
Thank you.
only one unknown here, namely the number of students in the class, let that number be x
so
.25x = 12
x = 12/.25 = 48
check: is 1/4 of 48 equal to 12 ?? yes
Of course, I'll be happy to help you with this math problem!
In this problem, you are being asked to find the total number of students in the class. To find the solution, we will use the given information that 12 students earned an A, which represents exactly 25% of the total number of students.
Let's set up an equation to solve for the unknown. Let's assume the total number of students in the class is "x". Since 12 students earned an A, we can set up the equation:
12 = 0.25x
To solve for "x", we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 0.25:
12/0.25 = x
After simplifying the left side, we can calculate the value of "x":
48 = x
Therefore, there are 48 students in the class.
To summarize, to find the total number of students in the class, we set up an equation using the given information and solve for the unknown variable. In this case, we found that there are 48 students in the class.