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# Help with distance, speed & time watch

1. Ok nice easy one...

But i cant get the formular to work it out.

You travel 30 miles in 4 mins.How fast are you going?

Ans 450mph

How do you get that answer by using the distance, speed, time triangle?

Help!!!!!!
2. Firstly, there's no r in 'formula'.

Now, that's like saying "you travel 30 miles in 4/60th of an hour," or "you travel 30 miles in 1/15th of an hour".

Now just use speed = distance / time. Remember that they want MILES per HOUR, so you want the distance in this formula to be measured in miles, and the time to be measured in hours. The above conversion gives us this information.
3. you do 4/60 = 0.066.... to get time in hours
then do 30/0.066... (using the triangle)
and you get 450mph
4. Thanks for the help.

really appreciate it
5. "Firstly, there's no r in 'formula'."
Are you quite sure about that?
6. (Original post by Snagglepuss)
Are you quite sure about that?

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Updated: November 12, 2008
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