document.write( "Question 947176: Chiara walks down to the bottom of the Grand Canyon at 4mph. She walks up at 2mph. What is her average rate of travel? \n" ); document.write( "
Algebra.Com's Answer #577879 by Alan3354(69443)\"\" \"About 
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Chiara walks down to the bottom of the Grand Canyon at 4mph. She walks up at 2mph. What is her average rate of travel?
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\n" ); document.write( "RT avg = 2*4*2/(4+2) = 16/6
\n" ); document.write( "= 8/3 mi/hr
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