SOLUTION: bert is 18 killometers away from Brenda. both begin to walk toward each other at the same time. bert walks at 4.5 killometers per hour. they meet in 3 hours. How fast was Brenda wa

Question 1113533: bert is 18 killometers away from Brenda. both begin to walk toward each other at the same time. bert walks at 4.5 killometers per hour. they meet in 3 hours. How fast was Brenda walking?
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
rate * time = distance
:
4.5(3) +3x = 18
:
divide both sides of = by 3
:
4.5 +x = 6
:
x = 1.5
:
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Brenda walks at 1.5 km/hour
:
check the answer
:
4.5(3) +1.5(3) = 18
:
13.5 +4.5 = 18
:
18 = 18
:
answer checks
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