document.write( "Question 771105: A man drives to work at 40mph. He drives home,along the same route, at 60mph. What is his average speed overall. \n" ); document.write( "
Algebra.Com's Answer #469948 by Alan3354(69443)\"\" \"About 
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A man drives to work at 40mph. He drives home,along the same route, at 60mph. What is his average speed overall.
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\n" ); document.write( "Avg for a round trip =
\n" ); document.write( "2*40*60/(40 + 60)
\n" ); document.write( "= 48 mi/hr
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