Question

A tutor works with a group of students. The tutor charges $40 plus $30 for each student in the group. Today the tutor charged a total of $220. Find the number of students in the group.

Answer 1

Answer: 6 students

A way to solve for this is to use this equation:

(s = number of students)

40 + (30 × s) = amount of money the tutor was paid.

Inserting 6 into the equation, it would look like this:

40 + (30 × 6) = 220

Therefore, the tutor taught 6 students.