document.write( "Question 813502: You want 350 liters of a solution with 12% acid. You have two solutions, one is 16% and the other is 9%. How many liters of the 16% solution will be needed? \n" ); document.write( "
Algebra.Com's Answer #489728 by ankor@dixie-net.com(22740)\"\" \"About 
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You want 350 liters of a solution with 12% acid. You have two solutions, one is 16% and the other is 9%.
\n" ); document.write( " How many liters of the 16% solution will be needed?
\n" ); document.write( ":
\n" ); document.write( "Let x = amt of 16% solution
\n" ); document.write( "total is to be 350 liters, therefore
\n" ); document.write( "(350-x) = amt of 9% solution
\n" ); document.write( ":
\n" ); document.write( ".16x + .09(350-x) = .12(350)
\n" ); document.write( ".16x + 31.5 - .09x = 42
\n" ); document.write( ".16x - .09x = 42 - 31.5
\n" ); document.write( ".07x = 10.5
\n" ); document.write( "x = 10.5/.07
\n" ); document.write( "x = 150 liters of the 16% solution \n" ); document.write( "
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