SOLUTION: 2 Jets fly in opposite directions, one at 250mph and the other at 500mph. How far apart are they after 35 minutes? I figured that the one at 250 flies at 4.1666 miles per minut

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Question 225739: 2 Jets fly in opposite directions, one at 250mph and the other at 500mph. How far apart are they after 35 minutes?
I figured that the one at 250 flies at 4.1666 miles per minute, (so 145.8333 at 35 minutes) and the one at 500 is 8.3333 per minute (so 291.6666 at 35 minutes) - so add the two together to get about 437.5 miles apart....
But my program is telling me that the answer is 291 miles apart. Am I thinking about this wrongly? Or is my program wrong?

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
2 Jets fly in opposite directions, one at 250mph and the other at 500mph.
How far apart are they after 35 minutes?
:
You check this using relative speed, 250 + 500 = 750
Dist = speed * time
:
750 * 35%2F60 = 437.5 mi which what you got