document.write( "Question 635387: A man walks a certain distance at the rate of 5 miles an hour and returns at the rate of 4 miles an hour. If the total time that it takes is 3 hours and 9 minute, what is the total distance that he walks? \n" ); document.write( "
Algebra.Com's Answer #400331 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!
Distance(d) equals Rate(r) times Time(t) or d=rt; r=d/t and t=d/r
\n" ); document.write( "Let d=distance walked one way; 2d=total distance walked
\n" ); document.write( "Time walking at 5 mi/hr=d/5
\n" ); document.write( "Time walking at 4 mi/hr=d/4\r
\n" ); document.write( "\n" ); document.write( "And we are told that the above times add up to 3 3/20 hr.
\n" ); document.write( "3 3/20 hr=63/20 hr
\n" ); document.write( "So our equation to solve is:
\n" ); document.write( "d/5 +d/4=63/20 multiply each term by 20
\n" ); document.write( "4d+5d=63
\n" ); document.write( "9d=63
\n" ); document.write( "d=7 mi
\n" ); document.write( "2d = total distance walked =2*7=14 mi---ans\r
\n" ); document.write( "\n" ); document.write( "Hope this helps---ptaylor
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