document.write( "Question 1032713: Ted walks from his home to the post office at an average rate of 3 miles per hour. He then runs back at an average rate of 7 miles per hour. What is his average rate for the entire trip? \n" ); document.write( "
Algebra.Com's Answer #647355 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Ted walks from his home to the post office at an average rate of 3 miles per hour. He then runs back at an average rate of 7 miles per hour. What is his average rate for the entire trip? \n" ); document.write( "============ \n" ); document.write( "Avg = 2*3*7/(3+7) \n" ); document.write( "Avg = 4.2 mi/hr \n" ); document.write( " \n" ); document.write( " |