document.write( "Question 715306: a solution of salt and water contains 12% salt by weight .after evaporation of 25 kg of water from the solution, the concentration of salt is 22%. what is the original quantity of salt in the solution? \n" ); document.write( "
Algebra.Com's Answer #439374 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! a solution of salt and water contains 12% salt by weight .after evaporation of 25 kg of water from the solution, the concentration of salt is 22%. what is the original quantity of salt in the solution? \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "salt + salt = salt \n" ); document.write( "0.12x - 0*25 = 0.22*(x-25) \n" ); document.write( "----- \n" ); document.write( "12x - 0 = 22x - 22*25 \n" ); document.write( "-10x = -22*25 \n" ); document.write( "x = 55 kg (original quantity) \n" ); document.write( "0.12x = 6.6 kg (original amount of salt) \n" ); document.write( "============================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " |