document.write( "Question 227574: Hi I need the formula for work problems. Joey can paint a room in 5 hours and sheila can paint it in 4 hours. How long will it take if they work together?
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Algebra.Com's Answer #169116 by user_dude2008(1862)![]() ![]() ![]() You can put this solution on YOUR website! t(1/5+1/4)=1 \n" ); document.write( "t/5+t/4=1 \n" ); document.write( "4t+5t=20 \n" ); document.write( "9t=20 \n" ); document.write( "t=20/9 \n" ); document.write( "t=2.222\r \n" ); document.write( "\n" ); document.write( "Answer: 2.222 hours \n" ); document.write( " |