document.write( "Question 166035: HOW much water must be mixed with 9 pints of 70% developer to produce a mixture that is 25% developer? \n" ); document.write( "
Algebra.Com's Answer #122407 by checkley77(12844)\"\" \"About 
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.70*9=.25(9+x)
\n" ); document.write( "6.3=2.25+.25x
\n" ); document.write( ".25x=6.3-2.25
\n" ); document.write( ".25x=4.05
\n" ); document.write( "x=4.05/.25
\n" ); document.write( "x=16.2 pints of water is needed.
\n" ); document.write( "Proof:
\n" ); document.write( ".70*9=.25(9+16.2)
\n" ); document.write( "6.3=.25*25.2
\n" ); document.write( "6.3=6.3
\n" ); document.write( "
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