Question 261859
Bert is 16.5 kilometers away from Brenda.
 Both begin to walk toward each other at the same time.
 Bert walks at 2.5 kilometers per hour.
 They meet in 3 hours. How fast is Brenda walking?
:
let b = Brenda's walking speed
:
Write a distance equation: dist = speed * time
:
Br's dist + Be's dist = 16.5 km
3b + 3(2.5) = 16.5
3b + 7.5 = 16.5
3b = 16.5 - 7.5
3b = 9
b = 3 km/hr is Brenda's speed
:
:
check:
3(3) + 3(2.5 ) = 16.5