Answer:
- Roberto's speed is 3 mph, Juana's speed is 2.5 mph
-----------------------
Let the speed be x for Roberto and y for Juana.
If they walk in same direction, Roberto walks 5.5 miles more in 11 hours:
When they walk towards each other, then they walk 5.5 miles together:
Simplify both equations:
Add up:
Find the value of y:
- 3 - y = 0.5
- y = 3 - 0.5
- y = 2.5