document.write( "Question 719586: How many liters of 80% alcohol solution must be added to 20 liters of 90% alcohol solution to produce 85% alcohol solution? \n" ); document.write( "
Algebra.Com's Answer #441394 by mananth(16946)\"\" \"About 
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-------------- percent ---------------- Amount
\n" ); document.write( "Alcohol I 90 ---------------- 20 liters
\n" ); document.write( "Alcohol II 80 ---------------- x liters
\n" ); document.write( "Mixture 85 ---------------- 20 + x liters
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\n" ); document.write( "90 * 20 + 80 x = 85 ( 20 + x )
\n" ); document.write( "1800 + 80 x = 1700 + 85 x
\n" ); document.write( "80 x -85 x = -1800 + 1700
\n" ); document.write( "-5 x = -100
\n" ); document.write( "/ -5
\n" ); document.write( "x = 20 liters Alcohol II
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\n" ); document.write( "m.ananth@hotmail.ca
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