document.write( "Question 629210: (a) if 5/7 of a room can be painted in 1hr, what is the rate of work? of the room per hour.\r
\n" ); document.write( "\n" ); document.write( "(b) At the same rate, how long will it take to paint the entire room?
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Algebra.Com's Answer #396095 by josmiceli(19441)\"\" \"About 
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If 5/7 of a room can be painted in 1 hour
\n" ); document.write( "then 7 times that, or \"+7%2A%285%2F7%29+\" = 5 rooms
\n" ); document.write( "can be painted in 7 hours.
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\n" ); document.write( "To paint 1 room will take 1/5 of that time, or
\n" ); document.write( "7/5 of an hour, and \"+%287%2F5%29%2A60+=+84+\"
\n" ); document.write( "and \"+84+-+60+=+24+\"
\n" ); document.write( "So, 1 room can be painted in 1 hour and 24 minutes
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