document.write( "Question 1114886: 11 ml of an alcohol solution was mixed with 4 ml of a 31% alchohol solution to make a 64% alchohol solution. Find the percent concentration of the first solution \n" ); document.write( "
Algebra.Com's Answer #729795 by addingup(3677)\"\" \"About 
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11x + 4(0.31) = 15(0.64)
\n" ); document.write( "11x + 1.24 = 9.6
\n" ); document.write( "11x = 9.6 - 1.24
\n" ); document.write( "x = 8.36/11 = 0.76
\n" ); document.write( "The percentage concentration of the first solution is 76%
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