document.write( "Question 763249: Pure acid is to be added to a 10% acid solution to obtain 90L of 27% solution. How many Liters of 100% pure acid should be used to make the solution \n" ); document.write( "
Algebra.Com's Answer #464642 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
Pure acid is to be added to a 10% acid solution to obtain 90L of 27% solution. How many Liters of 100% pure acid should be used to make the solution.
\n" ); document.write( "***
\n" ); document.write( "let x=amt of pure acid to be used
\n" ); document.write( "90-x=amt of 10% acid solution
\n" ); document.write( "..
\n" ); document.write( "100%x+10%(90-x)=27%*90
\n" ); document.write( "x+9-.1x=24.3
\n" ); document.write( ".9x=15.3
\n" ); document.write( "x=17
\n" ); document.write( "amt of pure acid to be used=17 Liters
\n" ); document.write( "
\n" );