marnie can walk 1km/m faster the jon. She completes a 20km hike 1 hour before him. Write an equation and solve it to find there walking speeds.
i cannot seem to solve this ahh plz help me
Using the formula
Marnie takes hours, and Jon takes hours.
Since Jon takes hour more than Marnie, we get:
Now multiply both sides by to get rid of fractions:
, since is impossible.
So Jon walks at 4 kph and Marnie at 5 kph.