document.write( "Question 1073065: It takes John 12 hours to proof read a chapter of hawks learning systems it takes Philip three hours how long would it take them working together? Round your answer to two decimal places \n" ); document.write( "
Algebra.Com's Answer #687895 by josgarithmetic(39621)![]() ![]() ![]() You can put this solution on YOUR website! John's rate plus Philip's rate is their combined rate when proofreading together.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "HOURS per CHAPTER is \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2 hours 24 minutes \n" ); document.write( " |