SOLUTION: 2 m³ of soil containing 35% sand was mixed into 6 m³ of soil containing 15% sand. What is the sand content of the mixture?

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Question 703871: 2 m³ of soil containing 35% sand was mixed
into 6 m³ of soil containing 15% sand. What
is the sand content of the mixture?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2 m³ of soil containing 35% sand was mixed
into 6 m³ of soil containing 15% sand. What
is the sand content of the mixture?
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Equation:
sand + sand = sand
0.35*2 + 0.15*6 = x*(2+6)
---
35*2 + 15*6 = x(800)
50 + 90 = 800x
x = 140/800
x = 0.175 or 17.5%
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Cheers,
Stan H.
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