SOLUTION: a woman jogs for 3km at 9km/h and then walks for 3km at 6km/h. What is her average speed for the entire trip? Round your final answer to three significant figures.

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: a woman jogs for 3km at 9km/h and then walks for 3km at 6km/h. What is her average speed for the entire trip? Round your final answer to three significant figures.       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 941726: a woman jogs for 3km at 9km/h and then walks for 3km at 6km/h. What is her average speed for the entire trip? Round your final answer to three significant figures.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a woman jogs for 3km at 9km/h and then walks for 3km at 6km/h. What is her average speed for the entire trip? Round your final answer to three significant figures.
===================
Divide the total distance (6 km) by the total time.
Find the 2 times by using r = d/t --> t = d/r