document.write( "Question 308392: It takes Sue 3 hours to paint a room and it takes Joe 5 hours to paint the same room. If they work together how long will it take them to paint the room?\r
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Algebra.Com's Answer #220545 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 1/3+1/5=1/x \n" ); document.write( "(5+3)/3*5=1/x \n" ); document.write( "8/15=1/x cross multiply. \n" ); document.write( "8x=15 \n" ); document.write( "x=15/8 \n" ); document.write( "x=1.875 hours working together. \n" ); document.write( " |