document.write( "Question 100008: How much of a liquid with a 30% alchohol content and how much of a liquid with a 100% alcohol content should be added to end up with 42 milliiters of with a 50% alcohol content? \n" ); document.write( "
Algebra.Com's Answer #72826 by Nate(3500)\"\" \"About 
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[ 100%(x) + 30%(42 - x) ]/[42] = 50%
\n" ); document.write( "[ x + 0.3(42 - x) ]/42 = 0.5
\n" ); document.write( "[ x + 12.6 - 0.3x ]/42 = 0.5
\n" ); document.write( "[ 0.7x + 12.6 ]/42 = 0.5
\n" ); document.write( "0.7x + 12.6 = 21
\n" ); document.write( "0.7x = 8.4
\n" ); document.write( "x = 12
\n" ); document.write( "42 - x = 30
\n" ); document.write( "12mL of 100% and 30mL of 30%
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