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Zarrin [17]
3 years ago
11

I will mark plus 25 pts. Help please A delivery truck is transporting boxes of two sizes: large and small. The large boxes weigh

60 pounds each, and the small boxes weigh 20 pounds each. There are 115 boxes in all. If the truck is carrying a total of 4300 pounds in boxes, how many of each type of box is it carrying?
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
6 0

    50(115-y) + 25y = 4125             [from eq2]

     5750 - 50y  + 25y = 4125           [distribute]

     5750 - 25y = 4125

      -25y = -1625

         y = 65             [divide both sides by (-25)]

 There are 65 small boxes.

Put that value into either equation (now, which is easier?) to solve for x:

  x = 115 - y

  x = 115 - 65

  x = 50

  There are 50 large boxes.

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