document.write( "Question 890108: Working alone, Sue can paint a 10' x 12' rectangular room in 12 hours. Joe can paint the same room in 16 hours. If they work together, how long will it take them to paint the room? \n" ); document.write( "
Algebra.Com's Answer #538695 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Working alone, Sue can paint a 10' x 12' rectangular room in 12 hours. Joe can paint the same room in 16 hours. If they work together, how long will it take them to paint the room? \n" ); document.write( ". \n" ); document.write( "Let x = time together \n" ); document.write( "then \n" ); document.write( "x(1/12 + 1/16) = 1 \n" ); document.write( "x(16 + 12) = 192 \n" ); document.write( "x(28) = 192 \n" ); document.write( "x = 6.857 hours \n" ); document.write( "or \n" ); document.write( "x = 6 hours and 51 minutes \n" ); document.write( " |