SOLUTION: A plane travels from Chicago to Los Angeles at 560mph and a hour later a plane travels from Los Angeles to Chicago at 640mph. It is 1800 miles from Chicago to Los Angeles. How long
Algebra.Com
Question 319676: A plane travels from Chicago to Los Angeles at 560mph and a hour later a plane travels from Los Angeles to Chicago at 640mph. It is 1800 miles from Chicago to Los Angeles. How long will it take for the first plane to pass the second plane? How far from Chicago will they be at thay time?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A plane travels from Chicago to Los Angeles at 560mph and an hour later a plane travels from Los Angeles to Chicago at 640mph.
-------------------------------------------------------
It is 1800 miles from Chicago to Los Angeles. How long will it take for the first plane to pass the second plane?
----
Chi to LA DATA:
rate = 560 mph ; time = x hrs ; distance = 560x miles
---
LA to Chi DATA:
rate = 640 mph ; time = x-1 hrs ; distance = 640x-640 miles
-----------------
Solve: 560x + 640x-640 = 1800
1200x = 2440
x = 2.0333 hrs (passing time for Chi to LA Plane)
-----
How far from Chicago will they be at that time?
2.0333*560 = 1138.67 miles
================================
Cheers,
Stan H.
==================
RELATED QUESTIONS
A plane leaves Chicago headed for Los Angeles at 540 mph. One hour later, a second plane (answered by checkley75)
a plane leaves Chicago headed for Los Angeles at 570mph. An hour later, a second plane... (answered by ewatrrr)
A plane leaves Chicago headed for Los Angeles at 520 mph. One hour later, a second plane... (answered by checkley79)
A plane leaves Chicago headed for Los Angeles traveling at 540 mph. One hour later, a... (answered by Paul)
A plane leaves Chicago headed for Los Angeles at 590 mph. One hour later, a second plane... (answered by josmiceli)
A plane leaves Chicago headed for Los Angeles at 530 mph. One hour later, a second plane... (answered by mananth)
A plane leaves Chicago headed for Los Angeles at 550 mph. One hour later, a second plane... (answered by Alan3354,MathTherapy)
If a plane leaves Chicago at 8am and got to los angeles at 12pm which is 1700 miles away, (answered by ewatrrr)
A jet flew at an average speed of 640 mph from Los Angeles to Chicago. Because of head... (answered by solver91311)