document.write( "Question 549907: How much pure water must be mixed with 3 pints of 70% developer to produce a mixture that is 29% developer? \r
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Algebra.Com's Answer #358182 by ankor@dixie-net.com(22740)\"\" \"About 
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How much pure water must be mixed with 3 pints of 70% developer to produce a mixture that is 29% developer?
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\n" ); document.write( "Let x = amt of water required
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\n" ); document.write( ".7(3) = .29(x+3)
\n" ); document.write( "2.1 = .29x + .87
\n" ); document.write( "2.1 - .87 = .29x
\n" ); document.write( "1.23 = .29x
\n" ); document.write( "x = 1.23/.29
\n" ); document.write( "x = 4.24 pints of water required
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\n" ); document.write( "Check this by finding the amt of developer in each mixture, should be the same
\n" ); document.write( ".7(3) = .29(3+4.24)
\n" ); document.write( "2.1 = .29(7.24)
\n" ); document.write( "2.1 = 2.1; confirms our answer of 4.24 pts of water
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