document.write( "Question 141627: How much pure water must be mixed with 7 pints of 50% developer to produce a mixture that is 23% developer? \n" ); document.write( "

Algebra.Com's Answer #103170 by checkley77(12844) $\"\"$ $\"About$

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.5*7=.23(x+7)
\n" ); document.write( "3.5=.23x+1.61
\n" ); document.write( ".23x=3.5-1.61
\n" ); document.write( ".23x=1.89
\n" ); document.write( "x=1.89/.23
\n" ); document.write( "x=8.22 pints of water will be needed.
\n" ); document.write( "proof:
\n" ); document.write( "3.5=.23(8.22+7)
\n" ); document.write( "3.5=.23*15.22
\n" ); document.write( "3.5=3.5
\n" ); document.write( " \n" ); document.write( "

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