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)![]() ![]() You can put this solution on YOUR website! 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( "------------------- \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 \n" ); document.write( " \n" ); document.write( " |