document.write( "Question 856361: How much 150 proof alcohol do I have to add to 80 proof Vodka to end up with 100 proof?
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Algebra.Com's Answer #515891 by josgarithmetic(39617)\"\" \"About 
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This will give only ratios between the 150 proof and the 80 proof:\r
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\n" ); document.write( "\n" ); document.write( "\"150v%2B80u=100\" and \"u%2Bv=1\"; and just solve the system for u and v. Your description did not include an expected amount of mixture. The two equations just given assume the mixture amount is 1.
\n" ); document.write( "You might want some help on how the system works. See this lesson:\r
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\n" ); document.write( "\n" ); document.write( "Two-Part Mixture for Known Concentration Result - both parts unknown
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