SOLUTION: A passenger plane and a jet leave at the same time from the same airport, traveling in opposite directions. The jet travels at twice the speed of the passenger plane. They are 2400

Question 209784: A passenger plane and a jet leave at the same time from the same airport, traveling in opposite directions. The jet travels at twice the speed of the passenger plane. They are 2400 miles apart in 4 hours. Find the speed of the passenger plane and jet.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
write 2 equations, 1 for the passenger plane
and 1 for the jet

and

given:
mi/hr
mi
hrs
hrs
---------------------------
Now I can rewrite the equations:

and

By substitution:

mi/hr
and

mi/hr
The speed of the passenger plane is 200 mi/hr
The speed of the jet is 400 mi/hr
check:

and

mi
OK

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