document.write( "Question 1087057: How many liters of a 90​% acid solution must be mixed with a 30​% acid solution to get 540 L of a 80​% acid​ solution? \n" ); document.write( "
Algebra.Com's Answer #701339 by jorel1380(3719)\"\" \"About 
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Let n and 540-n be the amounts of 90% acid and 30% acid, respectively. Then
\n" ); document.write( ".9n+.3(540-n)=.8(540)=432
\n" ); document.write( "Solve for n
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