document.write( "Question 821427: Patti has two solutions. One is 27% acid the other is 39% acid. How much of each solution should be mixed together to make 9 liters of a solution that is 29% acid? \n" ); document.write( "
Algebra.Com's Answer #494107 by richwmiller(17219)\"\" \"About 
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a+b=9,
\n" ); document.write( ".27a+.39b=.29*9
\n" ); document.write( "a=7.5, b=1.5
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