document.write( "Question 951319: how many liters of a 12% salt solution must be mixed with 19 liters of a 30% salt solution to obtain a 15%salt solution
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Algebra.Com's Answer #580916 by lwsshak3(11628)\"\" \"About 
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how many liters of a 12% salt solution must be mixed with 19 liters of a 30% salt solution to obtain a 15%salt solution
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\n" ); document.write( "let x=amt of 12% solution must be mixed
\n" ); document.write( "12%x+30%*19=15%(19+x)
\n" ); document.write( ".12x+5.7=2.85+.15x
\n" ); document.write( "0.03x=2.85
\n" ); document.write( "x=95
\n" ); document.write( "amt of 12% solution must be mixed=95 liters
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