document.write( "Question 202769: The average 150-lb adult burns about 360 calories walking 4 mi. How far should the average 150-lb adult walk in order to burn 20 calories? \n" ); document.write( "
Algebra.Com's Answer #152985 by rfer(16322)\"\" \"About 
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4/360:x/20
\n" ); document.write( "360x=80
\n" ); document.write( "x=0.23 miles
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