document.write( "Question 813526: A chemical storeroom has a 90% acid solution and a 40% acid solution. How many liters of the 90% solution should be added to 50 liters of the 40% solution to yield a 50% solution? \n" ); document.write( "
Algebra.Com's Answer #489747 by lwsshak3(11628)\"\" \"About 
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A chemical storeroom has a 90% acid solution and a 40% acid solution. How many liters of the 90% solution should be added to 50 liters of the 40% solution to yield a 50% solution?
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\n" ); document.write( "let x =amount of the 90% solution should be added
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\n" ); document.write( "90%x+40%*50=50%(x+50)
\n" ); document.write( "0.90x+20=0.50x+25
\n" ); document.write( "0.40x=5
\n" ); document.write( "x=12.5
\n" ); document.write( "amount of the 90% solution should be added=12.5 liters
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