document.write( "Question 169202: A tank contains 440 litres of a mixture which is 23.0% acid. How many litres of a mixture which is 12.0% acid must be added to get a mixture which is 14.5% acid. \n" ); document.write( "
Algebra.Com's Answer #124769 by nerdybill(7384)\"\" \"About 
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Let x = amount of 12% acid added
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\n" ); document.write( "\"amt of acid from 23%\" + \"amt of acid from 12%\" = \"amt in final mixture\"
\n" ); document.write( ".23(440) + .12x = .145(440+x)
\n" ); document.write( "101.2 + .12x = 63.8 + .145x
\n" ); document.write( "37.4 + .12x = .145x
\n" ); document.write( "37.4 = 0.025x
\n" ); document.write( "1496 liters = x
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