Answer :
Answer:
112 non-students and 211 students
Step-by-step explanation:
So, we have two kinds of paying attendees, students (x) and non-students (y).
We know that all together, they were 323, so x + y = 323
We know the base formula to calculate the total entry money goes like:
3.5x + 5.5y = 1354.50 (X students paid $3.50 and Y non-students paid $5.50)
Now, from the first equation, we can isolate x as x = 323 - y
Let's place this value of x in the second equation:
3.5 (323 - y) + 5.5y = 1354.50
1130.50 - 3.5y + 5.5y = 1354.50
2y = 224
y = 112
So, 112 non-students paid $5.50.
From first equation, we have:
x + y = 323
x + 112 = 323
x = 211
And 211 students paid $3.50.
We can verify with the second equation:
3.5x + 5.5y = 1354.50
3.5 * 221 + 5.5 * 112 = 1354.50
738.50 + 616 = 1354.50
1354.50 = 1354.50