document.write( "Question 808858: Susan can plant her garden in 5 hours working alone. A friend can do the same job in 8 hours? How long would t take them if they worked together?\r
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Algebra.Com's Answer #487239 by TimothyLamb(4379)\"\" \"About 
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s = 5 hrs/garden
\n" ); document.write( "swr = 1/5 = 0.2 gardens/hour
\n" ); document.write( "f = 8 hrs/garden
\n" ); document.write( "fwr = 1/8 = 0.125 gardens/hour
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\n" ); document.write( "together:
\n" ); document.write( "1/5 + 1/8 = 13/40 gardens/hour
\n" ); document.write( "Answer, to do the garden together:
\n" ); document.write( "40/13 = 3.1 hours/garden
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