Problema Solution
On Saturday, a local hamburger shop sold a combined total of 560
hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Saturday?
Answer provided by our tutors
Let
x = the number of hamburgers sold
y = the number of cheeseburgers sold
On Saturday, a local hamburger shop sold a combined total of 560 hamburgers and cheeseburgers:
x + y = 560
The number of cheeseburgers sold was three times the number of hamburgers sold:
y = 3x
By solving the system of equations:
x + y = 560
y = 3x
........
........
x = 140 hamburgers
y = 420 cheeseburgers
There were 140 hamburgers sold on Saturday.