document.write( "Question 280038: Ben nordstrom is developing film in his darkroom when he realizes he does not have the proper developer. He needs a mixture that is 20% developer, but he only has a mixture that is 90% developer. How much pure water must be mixed with 2 pints of 90% developer to produce the mixture he needs? \n" ); document.write( "
Algebra.Com's Answer #203602 by Alan3354(69443)\"\" \"About 
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Ben nordstrom is developing film in his darkroom when he realizes he does not have the proper developer. He needs a mixture that is 20% developer, but he only has a mixture that is 90% developer. How much pure water must be mixed with 2 pints of 90% developer to produce the mixture he needs?
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\n" ); document.write( "2 pints of 90% contains 1.8 pints of developer
\n" ); document.write( "That 1.8 pints is to be 20% in the new mix
\n" ); document.write( "--> the total = 9.0 pints
\n" ); document.write( "9 - 2 = 7 pints of water to be added
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