document.write( "Question 837555: In order to increase the amount of salt in a 40 gram mixture from a 5% to 20% salt, how much salt must be added? \n" ); document.write( "

Algebra.Com's Answer #504695 by lwsshak3(11628) $\"\"$ $\"About$

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In order to increase the amount of salt in a 40 gram mixture from a 5% to 20% salt, how much salt must be added?
\n" ); document.write( "***
\n" ); document.write( "let x=amount of salt to add
\n" ); document.write( "5%*40+100%x=20%(40+x)
\n" ); document.write( "2+x=8+.2x
\n" ); document.write( "0.8x=6
\n" ); document.write( "x=6/.8
\n" ); document.write( "x=7.5
\n" ); document.write( "amount of salt to add=7.5 grams \n" ); document.write( "

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