document.write( "Question 935841: I can only find 4% solution, but I need .12 solution. How much water do I add to get the .12% solution? \n" ); document.write( "

Algebra.Com's Answer #569187 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
say you have 1 liter of 4% solution
\n" ); document.write( "Then you have $\"+.04+\"$ liters of
\n" ); document.write( "concentrate ( whatever it is )
\n" ); document.write( "-------------------
\n" ); document.write( "Let $\"+w+\"$ = liters of water to be added
\n" ); document.write( "I can say:
\n" ); document.write( " $\"+.04+%2F+%28+w+%2B+1+%29++=+.0012+\"$
\n" ); document.write( " $\"+.04+=+.0012%2A%28+w+%2B+1+%29+\"$
\n" ); document.write( " $\"+.04+=+.0012w+%2B+.0012+\"$
\n" ); document.write( " $\"+.0012w+=+.0388+\"$
\n" ); document.write( " $\"+w+=+32.333+\"$
\n" ); document.write( "32.333 liters of water needs to be added
\n" ); document.write( "--------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+.04+%2F+%28+w+%2B+1+%29++=+.0012+\"$
\n" ); document.write( " $\"+.04+%2F+%28+32.333+%2B+1+%29++=+.0012+\"$
\n" ); document.write( " $\"+.04+%2F+33.333+=+.0012+\"$
\n" ); document.write( " $\"+.0012+=+.0012+\"$
\n" ); document.write( "OK
\n" ); document.write( "------------
\n" ); document.write( "Note that you can scale up the liters of
\n" ); document.write( "solution to whatever amount you want\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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