document.write( "Question 208137This question is from textbook
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\n" ); document.write( "6 ft/sec to miles per hour
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Algebra.Com's Answer #157452 by rfer(16322)\"\" \"About 
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3600 sec in an hr
\n" ); document.write( "3600*6=21600 ft/hr
\n" ); document.write( "21600/5280=4.09 mi/hr
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