document.write( "Question 349710: How many liters of a 30% solution must be mixed with 40 liters of a 90% soultion to get a 80% solution \n" ); document.write( "
Algebra.Com's Answer #249999 by nyc_function(2741)\"\" \"About 
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0.30x + 0.90(40) = 0.80(x + 40)\r
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