Question

A fox sees a rabbit 35 feet away and starts chasing it. As soon as the fox starts moving, the rabbit sees it and starts running away at a speed of 40 feet per second.

What should the fox's speed be to catch up to the rabbit in no more than 10 seconds?

Answer: The fox's speed should be _ _ feet per second.
First _ = equal to, greater than, less than, not less than, not more than.
Second _ = the feet per second.

Answer 1

Answer: no less than 43.5

Explanation:

if the rabbit runs 40ft/s in 10 seconds it will have run 400ft plus the additional 35 feet that it was already away, so the rabbit is 435 ft away in 10 seconds. In order for the fox to catch up to the rabbits it will have to run 400 ft/s plus 35ft so we divide 35 by 10 and get 3.5 add this together and we get 43.5 seconds and it can be no less than that or the fox cant catch up

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