document.write( "Question 402077: If you bike for 60km at 30km/h and return at 20km/h, what is your average speed for the whole trip? \n" ); document.write( "
Algebra.Com's Answer #284488 by robertb(5830)![]() ![]() You can put this solution on YOUR website! Use the harmonic mean:\r \n" ); document.write( "\n" ); document.write( " |