document.write( "Question 1028680: A nurse has a 60% bleach solution that she needs to add some water to so that the new bleach solution is a safer 20% bleach solution. How much water does she need to add to 8 gallons of the 60% bleach solution to result in a 20% bleach solution? \n" ); document.write( "
Algebra.Com's Answer #643770 by mananth(16946)![]() ![]() You can put this solution on YOUR website! --------Bleach \n" ); document.write( "-----------percent----------------Amount \n" ); document.write( "Bleach 60 ---------------- 8 gallons \n" ); document.write( "Water 0 ---------------- x gallons \n" ); document.write( "Mixture 20 ---------------- 8 + x gallons \n" ); document.write( " \n" ); document.write( "60 * 8 + 0 x = 20 ( 8 + x ) \n" ); document.write( "480 + 0 x = 160 + 20 x \n" ); document.write( "0 x -20 x = -480 + 160 \n" ); document.write( "-20 x = -320 \n" ); document.write( "/ -20 \n" ); document.write( "x = 16 gallons Water \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |