SOLUTION: Two cars leave Peoria at the same time, one heading east at 50 mph and the other west at 40 mph. How long will it take them to be 405 miles apart?

Question 903365: Two cars leave Peoria at the same time, one heading east at 50 mph and the other west at 40 mph. How long will it take them to be 405 miles apart?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Two cars leave Peoria at the same time, one heading east at 50 mph and the other west at 40 mph. How long will it take them to be 405 miles apart?
.
applying the "distance formula" d=rt
.
Let t = time (hours) it takes
then
50t + 40t = 405
90t = 405
t = 405/90
t = 4.5 hours
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