SOLUTION: Two planes flying parallel to each other at the same altitude are one mile apart. One plane increases its speed by 20 mph. After flying 2 hours, what is the straight line distanc

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Question 1023442: Two planes flying parallel to each other at the same altitude are one
mile apart. One plane increases its speed by 20 mph. After flying
2 hours, what is the straight line distance between the 2 planes?
Found 2 solutions by solver91311, stanbon:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Use Pythagoras. One leg of the triangle is 1 mile, and the other leg is 40 miles.

John

My calculator said it, I believe it, that settles it

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Two planes flying parallel to each other at the same altitude are one
mile apart. One plane increases its speed by 20 mph. After flying
2 hours, what is the straight line distance between the 2 planes?
--------
Slower plane DATA:
rate = r mph; distance in 2 hrs = 2r miles
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Faster plane DATA:
rate = r+20 mph ; distance in 2 hrs = 2r+40 miles
------
Horizontal distance between the planes:: 1 mile
Diagonal distance:: sqrt[1^2+40^2] = sqrt[1601] = 40.012 miles
------------
Cheers,
Stan H.