document.write( "Question 319767: how much salt must be added to 800 grams of a solution that is 15% to obtian a solution that is 20% salt? \n" ); document.write( "
Algebra.Com's Answer #229020 by mananth(16946)\"\" \"About 
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how much salt must be added to 800 grams of a solution that is 15% to obtian a solution that is 20% salt?
\n" ); document.write( "let x grams of salt be added.
\n" ); document.write( "x+0.15*800=(x+800)*0.2
\n" ); document.write( "x+120=0.2x+160
\n" ); document.write( "0.8x=40
\n" ); document.write( "x=40/0.8
\n" ); document.write( "50 grams
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