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17-11-2017
Mathematics

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1 load of bricks weigh twice as much as a load of sticks. the total weight of 4 loads of each is 771 kg. What is the total weight of 1 load of bricks and 3 loads of sticks?

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paradise227 paradise227

17-11-2017

x=brick y=sticks
x=2y
4x+4y=771
4(2y)+4y=771
8y+4y=771
12y=771
y= 771/12
y = 64.25
x = 64.25*2=128.5

Answer:
128.5+64.25*3=321.25kg

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