document.write( "Question 257685: 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 together? \n" ); document.write( "
Algebra.Com's Answer #189664 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Use the shortcut for these, product/sum
\n" ); document.write( "7*5/(7+5) = 35/12
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