Answer: There were 125 Burgers sold on Friday.
Explanation: Let's use algebra to solve this problem. Let's represent the number of hamburgers sold as "H" and the number of cheeseburgers sold as "C."
According to the problem, the combined total of hamburgers and cheeseburgers sold was 375, so we can write the equation:
H + C = 375
The problem also states that the number of cheeseburgers sold was two times the number of hamburgers sold. We can express this as:
C = 2H
Now we can substitute the value of C from the second equation into the first equation:
H + 2H = 375
Combining like terms, we have:
3H = 375
To isolate H, we divide both sides of the equation by 3:
H = 375 / 3
H = 125
Therefore, 125 hamburgers were sold on Friday.