Question

Hakim is a kickboxing instructor who will be teaching classes at a local gym. To get certified as an instructor, he spent a total of $90. Hakim will be earning a base salary of $70 per month from the gym, plus an additional $5 for every class he teaches. If Hakim teaches a certain number of classes during his first month as an instructor, he will earn back the amount he spent on certification. How many classes will that take?

Answer 1

4 classes

Explanation:

So to solve this problem, you can make an equation. Since he makes $70 per month and $5 per class, and you're trying to figure out how many classes he has to take to get $90, you have the equation 70 + 5x = 90.

Then, you solve:

`5x + 70 = 90`

subtract 70 from both sides

`5x = 20`

divide both sides by 5

`x = 4`

So you get that he has to take 4 classes.