document.write( "Question 455500: A scientist wants to make 6 milliliter of a 30% sulfuric acid solution. The solution is to be made from a combination of a 20% sulfuric acid solution and a 50% sulfuric acid solution. How many milliliters of each solution must be combined to make the 30% solution? \n" ); document.write( "
Algebra.Com's Answer #316630 by jorel1380(3719)\"\" \"About 
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6x.3=1.8
\n" ); document.write( "m+n=6
\n" ); document.write( ".2m+.5n=1.8
\n" ); document.write( "2m+5n=18
\n" ); document.write( "2m+2n=12
\n" ); document.write( "3n=6
\n" ); document.write( "n=2
\n" ); document.write( "m=4
\n" ); document.write( "You need 4 ml of 20% solution and 2 ml of 50% solution to make 6 ml of 30% solution.
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