document.write( "Question 845396: Raul can plumb a house in 48 hours. Mira can do the same job in 36 hours. How long would it take if they worked together? \n" ); document.write( "
Algebra.Com's Answer #509269 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
1/48+1/36=1/x
\n" ); document.write( "x = 144/7
\n" ); document.write( "x = 20.571
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