document.write( "Question 306999: Solution X is 40% acid and solution Y is 85% acid. How much of each is needed to make a 90 Liters of a solution that is 70% acid? \n" ); document.write( "
Algebra.Com's Answer #219626 by richwmiller(17219)\"\" \"About 
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x+y=90
\n" ); document.write( ".4x+.85y=.7*90\r
\n" ); document.write( "\n" ); document.write( "x=30 y=60
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