document.write( "Question 140581: How much pure water must be mixed with 9 pints of %60 developer to produce a mixture that is %19 developer? \n" ); document.write( "
Algebra.Com's Answer #102381 by checkley77(12844)\"\" \"About 
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9*.6+X=.19(X+9)
\n" ); document.write( ".54+X=.19X+1.71
\n" ); document.write( "X+.19X=1.71-.54
\n" ); document.write( ".81X=1.17
\n" ); document.write( "X=1.17/.81
\n" ); document.write( "X=1.4444 PINTS OF WATER SHOULD BE ADDED.
\n" ); document.write( "PROOF:
\n" ); document.write( ".54+1.444=.19(9+1.444)
\n" ); document.write( "1.984=.19*10.444
\n" ); document.write( "1.984=1.984
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