SOLUTION: 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
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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? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! 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
