SOLUTION: Two cars are traveling in the same direction. The first car is going 40 mi/h and the second car is going 55 mi/h. The first car left 3 hours before the second car. Which equatio

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Two cars are traveling in the same direction. The first car is going 40 mi/h and the second car is going 55 mi/h. The first car left 3 hours before the second car. Which equatio      Log On

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Question 1103742: Two cars are traveling in the same direction. The first car is going 40 mi/h and the second car is going 55 mi/h. The first car left 3 hours before the second car. Which equation could you solve to find how many hours it will take for the second car to catch up to the first car
Answer by ikleyn(52839) About Me  (Show Source):
You can put this solution on YOUR website!
.
The equation you are asking for is


40*(t+3) = 55*t,


where t is the time counted after the second car started.


The equation says that the distance covered by each car from the starting point to the catching point is the same for both cars.

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For introductory lessons on Travel and Distance problem see the lessons
    - Travel and Distance problems
    - Travel and Distance problems for two bodies moving in opposite directions
    - Travel and Distance problems for two bodies moving in the same direction (catching up)
in this site.