SOLUTION: 2m^3 of soil containing 35% sand was mixed into 6m^3 of soil containing 15% sand . What is the sand content of the mixture?

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Question 189292: 2m^3 of soil containing 35% sand was mixed into 6m^3 of soil containing 15% sand . What is the sand content of the mixture?
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
.35*2+.15*6=8x
.70+.90=8x
1.6=8x
x=1.6/8
x=.2 or 20% of the mix is sand.