document.write( "Question 423817: 10 Liters of a 20% acid solution are mixed with 30 Liters of a 30% acid solution. Which of the following is the concentration of acid in the final mixture?\r
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Algebra.Com's Answer #319234 by jorel1380(3719)\"\" \"About 
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10x.2=2
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\n" ); document.write( "9+2/10+30=11/40=.275
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