document.write( "Question 376260: Jack usually mows his lawn in 7 hours. Marilyn can mow the same yard in 5 hours. How much time would it take for them to mow the lawn together? \r
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Algebra.Com's Answer #267718 by Alan3354(69443)\"\" \"About 
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Use product/sum
\n" ); document.write( "7*5/(7+5) = 35/12 hours
\n" ); document.write( "= 2 hours 55 minutes
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