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.

Results 1 to 6 of 6

- September 18th 2009, 04:21 PM #1

- Joined
- Sep 2009
- Posts
- 11

## [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?

- September 18th 2009, 04:23 PM #2

- September 18th 2009, 04:23 PM #3

- Joined
- May 2009
- Posts
- 471

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

- September 18th 2009, 04:49 PM #4

- Joined
- Sep 2009
- Posts
- 11

- September 18th 2009, 04:52 PM #5

- Joined
- Sep 2009
- Posts
- 11

- September 18th 2009, 04:54 PM #6