SOLUTION: 10 m3(The 3 is supposed to be small and high like in exponent. My computer isn't skilled.) of soil containing 40% sand was mixed in 8m3(Again with the 3, its like an exponent) of s

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Question 334017: 10 m3(The 3 is supposed to be small and high like in exponent. My computer isn't skilled.) of soil containing 40% sand was mixed in 8m3(Again with the 3, its like an exponent) of soil containing 58% sand. What is the sand content of the mixture?
The answer is 48% (I looked at the answer sheet! Shhh!), but I need to know how to solve it! And i have to show all of my work!
Help? Thank you so MUCH!!!

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let X be the sand content of the mixture,
10%2840%29%2B8%2858%29=%2810%2B8%29X
400%2B464=18X
18X=864
X=48