document.write( "Question 744895: How much pure water must be mixed with 2 pints of 50% developer to produce a mixture that is
\n" ); document.write( "31% developer \n" ); document.write( "

Algebra.Com's Answer #453616 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+w+\"$ = pints of water needed
\n" ); document.write( " $\"+.5%2A2+=+1+\"$ pint of developer in 50% solution
\n" ); document.write( "--------------
\n" ); document.write( " $\"+1+%2F+%28+2+%2B+w+%29+=+.31+\"$
\n" ); document.write( " $\"+.31%2A%28+2+%2B+w+%29+=+1+\"$
\n" ); document.write( " $\"+2+%2B+w+=+1%2F.31+\"$
\n" ); document.write( " $\"+w+=+3.2258+-+2+\"$
\n" ); document.write( " $\"+w+=+1.2258+\"$ pints
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+1+%2F+%28+2+%2B+w+%29+=+.31+\"$
\n" ); document.write( " $\"+1+%2F+%28+2+%2B+1.2258+%29+=+.31+\"$
\n" ); document.write( " $\"+1+%2F+3.2258+=+.31+\"$
\n" ); document.write( " $\"+.31+=+.31+\"$
\n" ); document.write( "OK \n" ); document.write( "

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