The total number of students is 6 if the tutor charges a total of $220
How to determine the total number of students
From the question, we have the following parameters that can be used in our computation:
Charges = $40 plus $30 for each student
This means that the function is
f(x) = 40 + 30x
Where
x is the number of students
Also, we have
Total charges = 220
This means that
40 + 30x = 220
So, we have
30x = 180
Divide by 30
x = 6
Hence, the total number of students is 6
Question
The tutor charges $40 plus $30 for each student in the group. Today the tutor has works with a group of students students and charges a total of $220.
Determine the total number of students