SOLUTION: A delivery truck is transporting boxes of two sizes large and small the large boxes is weighed 55 pounds each and a small box is weighed 25 pounds each there are 120 boxes in all.

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Question 1191150: A delivery truck is transporting boxes of two sizes large and small the large boxes is weighed 55 pounds each and a small box is weighed 25 pounds each there are 120 boxes in all. If the trick is carrying a total of 4950 pounds in boxes, how many of each type of boxes is it carrying
Found 2 solutions by Boreal, Alan3354:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x large boxes
120-x small boxes
weight of the large boxes is 55x
small boxes weigh 25(120-x)=3000-25x
Those two add to 30x+3000=4950
so 30x=1950
x=65 large boxes (total weight is 3575 pounds)
120-x=55 small boxes (weight is 1375 pounds). those two add to 4950 pounds.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A delivery truck is transporting boxes of two sizes large and small the large boxes is weighed 55 pounds each and a small box is weighed 25 pounds each there are 120 boxes in all. If the trick is carrying a total of 4950 pounds in boxes, how many of each type of boxes is it carrying
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L + S = 120 --- # of boxes
55L + 25S = 4950 ----- Total weight
==============
11L + 5S = 990 ---- Weight divided by 5
5L + 5S = 600 ------ Boxes times 5
--------------------------------------------------- Subtract
6L = 390
L = 65 large boxes
etc