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Old Sep 18th 2008, 06:01 PM   #1
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A little help

You can determine the speed of a car by measuring the time it takes to travel between mile markers on a highway (a) how many seconds should elapse between two consecutive mile markers if the car's average speed is 65 mi/h? (b) what is the car's average speed if it takes 65 s to travel between the mile markers ?
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Old Sep 18th 2008, 06:09 PM   #2
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(a) Find 65 mi/h = how many mi/s ? Say x, then answer is 1/x.
(b) 1 mi / 65 s = how many mi / h ? Taht's the answer.
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