In 2 hours, plane A travels 300 miles.

In 2 hours, plane B travels 400 miles

It is just a 3-4-5 triangle. Use Pythagoras.

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- Sep 18th 2009, 05:21 PM #1

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## [SOLVED] I can't get this one....

i thought the answer to this question would be 700, but on the answer sheet it says 500. I don't get how it was done. Please help, thanks.

If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?

- Sep 18th 2009, 05:23 PM #2

- Sep 18th 2009, 05:23 PM #3

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2 hours have past, so the planes move 300 miles and 400 miles perpindicular to eachother, so how far apart they are is a pythagorean theorem question

We have to find the hypotneuse of this triangle, so let d be how far apart they are

you will see d is 500

- Sep 18th 2009, 05:49 PM #4

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- Sep 18th 2009, 05:52 PM #5

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- Sep 18th 2009, 05:54 PM #6