SOLUTION: How many liters of a 20% alcohol solution should Maria mix with 50 liters of a 60% alcohol solution to obtain a 30% solution?

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Question 160238This question is from textbook Elementary & Intermediate Algebra
: How many liters of a 20% alcohol solution should Maria mix with 50 liters of a 60% alcohol solution to obtain a 30% solution? This question is from textbook Elementary & Intermediate Algebra

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be then number of 20% liters
0.2x+%2B+0.6%2850%29+=+0.3%2850%2Bx%29+
0.2x+%2B+30+=+15+%2B+0.3x
15+=+.1x
150+=+x
Check your answer to see it works
Is .2%2A150+%2B+30+=+0.3%2A200???