document.write( "Question 848978: How many liters of pure water should be mixed with a 12-L solution of 70% acid to produce a mixture that is 90% water? \n" ); document.write( "
Algebra.Com's Answer #511323 by richwmiller(17219)\"\" \"About 
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water view
\n" ); document.write( "x+.3(12)=.9(x+12)\r
\n" ); document.write( "\n" ); document.write( "acid view
\n" ); document.write( ".7(12)=.1(12+y)\r
\n" ); document.write( "\n" ); document.write( "x=72., y=72.
\n" ); document.write( "72 liters of water
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