Adelivery truck is transporting boxes of two sizes: large and small. the combined weight of a large box and a small box is 85
pounds. the truck is transporting 60
large boxes and 50
small boxes. if the truck is carrying a total of
4800 pounds in boxes, how much does each type of box weigh?

60x+50y=4800

x+y=85

Where x is the large box and y is the small box

x+y=85  >    -50x-50y=-4250
                             60x+50y=4800
                            
                             10x        =550

x=55

y=85-55
  =30

The answer is that the large box is 55 pounds and the small box is 30 pounds.