document.write( "Question 356284: If Jim can paint a house in 3 hr and Robert can paint the same house in 5 hr, how long does it take them to paint it together? \n" ); document.write( "
Algebra.Com's Answer #254342 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If Jim can paint a house in 3 hr and Robert can paint the same house in 5 hr, how long does it take them to paint it together? \n" ); document.write( "--------------- \n" ); document.write( "Look at how much each does per hour. \n" ); document.write( "Jim does 1/3 of the job per hour. \n" ); document.write( "Robert does 1/5 per hour. \n" ); document.write( "Add those for the total per hour. \n" ); document.write( "Invert it to get hours per job.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |