SOLUTION: Get a jet leave an airport traveling at a steady rate of 600 km/h another jet leave for airport at three fourths of an hour later traveling at 800 km/h in the same direction how lo
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Question 583659: Get a jet leave an airport traveling at a steady rate of 600 km/h another jet leave for airport at three fourths of an hour later traveling at 800 km/h in the same direction how long will it take for the second Jets overtake the first
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
How much of a head start does the 1st jet have?
km head start
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Now start a stopwatch when the 2nd plane leaves
They will both fly for the same amount of time
until they meet
Let = the time in hrs they both have to fly
Let = the distance in km 2nd plane has to fly
-------------
Equation for 1st plane:
Equation for 2nd plane:
------------
By substitution:
hrs
It will take the 2nd jet 2 hrs and 15 min to overtake the 1st
check answer:
km
and
OK
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