document.write( "Question 661539: A tank holds 95 liters of a chemical solution. Currently, the solution has a strength of 20%. How much of this should be drained and replaced with a 65% solution to get a final strength of 50%? Could you write the original equation also. \n" ); document.write( "
Algebra.Com's Answer #411690 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! A tank holds 95 liters of a chemical solution. Currently, the solution has a strength of 20%. How much of this should be drained and replaced with a 65% solution to get a final strength of 50%? Could you write the original equation also. \n" ); document.write( "** \n" ); document.write( "let x=amt of 20% solution to be drained and replaced with 65% solution. \n" ); document.write( "95-x=amt of 20% solution remaining in tank. \n" ); document.write( ".. \n" ); document.write( "20%(95-x)+65%x=50%*95 \n" ); document.write( "19-.2x+.65x=47.5 \n" ); document.write( ".45x=28.5 \n" ); document.write( "x=63+1/3 liters \n" ); document.write( "amt of 20% solution to be drained and replaced with 65% solution=63+1/3 liters \n" ); document.write( " |