Adelivery truck is transporting boxes of two sizes: large and small. the combined weight of a large box and small box is 80pounds. the truck is transporting 55 large boxes and 60 small boxes. if the truck is carrying a total of 4575 pounds in boxes, how much does each type of box weigh? large: small:

Large; 45 pounds

Small: 35 pounds

Step-by-step explanation:

let x= large and y=small

Set up two equations:

x+y=80

55x+60y=4575

Solve:

x=80-y

Plug this 'x' into your other equation

55(80-y)+60y=4575

Distribute:

4400-55y+60y=4575

Simplify:

5y=175

Divide:

y=35 small boxes

Plug this 'y' into first equation

x+35=80

Solve:

x=45

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

if graphs are part of the problem statement, share them.   .