SOLUTION: A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 12 large boxes and 2 small boxes has a total weight of 199 kilograms. A delivery of 3 larg

Question 1168915: A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 12 large boxes and 2 small boxes has a total weight of 199 kilograms. A delivery of 3 large boxes and 5 small boxes has a total weight of 79 kilograms. How much does each type of box weigh?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
Make the large boxes = x
Small boxes = y
12x + 2y = 199.........(1)
3x + 5y = 79...........(2)
Multiply (2) by 4
12x + 2y = 199........(1)
12x + 20y = 316.......(2)
Subtract equation (1) from (2)
18y = 117
y = 6.5
Substitute y = 6.5 into equation (1)
12x + 2(6.5) = 199
12x + 13 = 199
12x = 199 - 13
12x = 186
x = 15.5
Large boxes weigh 15.5 kg
Small boxes weigh 6.5 kg.
Hope this helps :-)
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