document.write( "Question 675768: Sam leaves for the store on his skateboard at 8 mph. His skateboard breaks when he gets to the store, so he immediately goes home at a speed of 4 mph. What is the round trip distance if it took 2 hours? \n" ); document.write( "
Algebra.Com's Answer #420061 by Alan3354(69443) You can put this solution on YOUR website! Sam leaves for the store on his skateboard at 8 mph. His skateboard breaks when he gets to the store, so he immediately goes home at a speed of 4 mph. What is the round trip distance if it took 2 hours? \n" ); document.write( "--------------- \n" ); document.write( "Avg speed for the round trip = 2*8*4/(8+4) = 64/12 \n" ); document.write( "Avg = 16/3 mi/hr \n" ); document.write( "d = r*t = 2*16/3 \n" ); document.write( "RT distance = 32/3 miles \n" ); document.write( " \n" ); document.write( " |