document.write( "Question 571229: if it takes 4 hours for a group of people to paint a house and 6 hours for another group of people to paint another house, How long will it take for both groups of people to paint a house together? \n" ); document.write( "
Algebra.Com's Answer #368019 by nerdybill(7384) You can put this solution on YOUR website! if it takes 4 hours for a group of people to paint a house and 6 hours for another group of people to paint another house, How long will it take for both groups of people to paint a house together? \n" ); document.write( "Let x = time (hours) it takes for both groups \n" ); document.write( "then \n" ); document.write( "x(1/4 + 1/6) = 1 \n" ); document.write( "multiply both sides by 12: \n" ); document.write( "x(3 + 2) = 12 \n" ); document.write( "x(5) = 12 \n" ); document.write( "x = 12/5 \n" ); document.write( "x = 2.4 hours \n" ); document.write( " \n" ); document.write( " |