document.write( "Question 797407: a certain solution of salt water is 15% salt and weighs 35 pounds. how much salt must be added to produce a solution that is 25% salt \n" ); document.write( "

Algebra.Com's Answer #481780 by josmiceli(19441) $\"\"$ $\"About$

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$\"+.15%2A35+=+5.25+\"$ pounds of salt in solution
\n" ); document.write( "Let $\"+x+\"$ = pounds of salt to be added
\n" ); document.write( "----------------
\n" ); document.write( " $\"+%28+5.25+%2B+x+%29+%2F+%28+35+%2B+x+%29+=+.25+\"$
\n" ); document.write( " $\"+5.25+%2B+x+=+.25%2A%28+35+%2B+x+%29+\"$
\n" ); document.write( " $\"+5.25+%2B+x+=+8.75+%2B+.25x+\"$
\n" ); document.write( " $\"+.75x+=+8.75+-+5.25+\"$
\n" ); document.write( " $\"+.75x+=+3.5+\"$
\n" ); document.write( " $\"+x+=+4.667+\"$
\n" ); document.write( "4.667 pounds of salt must be added
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+5.25+%2B+x+%29+%2F+%28+35+%2B+x+%29+=+.25+\"$
\n" ); document.write( " $\"+%28+5.25+%2B+4.667+%29+%2F+%28+35+%2B+4.667+%29+=+.25+\"$
\n" ); document.write( " $\"+9.91667+%2F+39.667+=+.25+\"$
\n" ); document.write( " $\"+9.91667+=+.25%2A39.667+\"$
\n" ); document.write( " $\"+9.91667+=+9.91667+\"$
\n" ); document.write( "OK \n" ); document.write( "

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