Answer:
The answer is 147 hamburgers.
Explanation:
We are looking for the number of hamburgers sold.
number of hamburgers sold =x
We are given that the number of cheeseburgers sold was three times the number of hamburgers sold.
number of cheeseburgers sold =3x
The total number of hamburgers and cheeseburgers sold was 588. We get the following.
number of cheeseburgers sold + number of hamburgers sold = 588
3x + x = 588
4x = 588
588/4 = 147
x = 147
So, the number of hamburgers sold was 147.