document.write( "Question 1161939: To make a 6% acid solution, a chemist mixes some 4% acid solution with 12 L of 10% acid solution. How much of the 4% solution must be added to the 10% solution to make the 6% acid solution? \n" ); document.write( "
Algebra.Com's Answer #785587 by josgarithmetic(39618)\"\" \"About 
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Available, 4% and 10% acid
\n" ); document.write( "Want 6% and use 12L of the 10%\r
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\n" ); document.write( "\n" ); document.write( "Account for amount of pure acid.
\n" ); document.write( "x of the 4%.
\n" ); document.write( "\"4x%2B10%2A12=6%28x%2B12%29\"
\n" ); document.write( "Simplify and solve for x.
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