SOLUTION: A train leaves Los Angeles at 2 pm heading north at 50mph. If the next rain leaves in 3 hours, and will also head north at 60mph, at what time will they meet?
** Can u please w
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** Can u please w
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Question 979875: A train leaves Los Angeles at 2 pm heading north at 50mph. If the next rain leaves in 3 hours, and will also head north at 60mph, at what time will they meet?
** Can u please write all the steps and not only the answer. That would help me understand a lot better. Thanks guys! Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! First, you want to know how much of a
head start the 1st train got mi is the 1st train's head start
------------------------------------------
Now you want to start a stop watch when the
2nd train leaves at 2 PM + hrs = 5 PM
Let = the time on the stopwatch when
the 2nd train catches up with the 1st train
( note that both trains will travel for the
same amount of time as shown on stop watch )
Let = the distance the 2nd train travels
until it catches the 1st train
---------------------------------------
Equation for 1st train:
(1)
Equation for 2nd train:
(2)
---------------------
Substitute (2) into (1)
(1)
(1)
(1)
The trains will meet hrs after 5 PM hrs after 5 PM = 5 AM, and
5 AM + = 8 AM the following day
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check anwer:
(2)
(2)
(2) mi
and
(1)
(1)
(1)
(1) mi
OK
