SOLUTION: A car and a truck left Washington, DC traveling in opposite directions. The car traveled 19 miles per hour faster than the truck, and at the end of 8 hours they were 1448 miles apa
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Question 1035314: A car and a truck left Washington, DC traveling in opposite directions. The car traveled 19 miles per hour faster than the truck, and at the end of 8 hours they were 1448 miles apart. What was the average speed of each vehicle?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the speed of the truck in mi/hr
= the speed of the car in mi/hr
------------------------------
You can think of this as one of the vehicles
covering 1448 mi at the sum of their speeds
and the other vehicle standing still
-----------------------------
and
----------------
The car's speed is 100 mi/hr
The truck's speed is 82 mi/hr
------------------------
check:
mi
and
mi
-----------------
mi
OK
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