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)\"\" \"About 
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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.
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\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.
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\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
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