document.write( "Question 1013889: Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution.
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document.write( "What amounts of each should be used?
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document.write( "____ L of pure acid solution and ____ L of 10% acid solution.
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Algebra.Com's Answer #630189 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution. \n" ); document.write( "What amounts of each should be used? \n" ); document.write( "------------------ \n" ); document.write( "t = 10% \n" ); document.write( "h = 100% \n" ); document.write( "----- \n" ); document.write( "t + h = 90 (total solution) \n" ); document.write( "10t + 100h = 90*20 (total acid) \n" ); document.write( "Solve for t & h \n" ); document.write( " \n" ); document.write( " |