How much time would it take to drive a car 500 miles non-stop at a constant speed of 65 miles per hour?

Question

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Answer 1

Abby:

 

Remember that distance traveled, say, d, equals the speed, say s, times the time taken, say t.  (in formula, d = st)

 

You drove the car 500 miles, so d = 500.  You maintained a constant speed of 65 mph, so s = 65.  To find the time taken substitute in d = st as

 

500 = 65 t

 

t = 500/65 = 7.69 (to 2 decimals) hours, that is t 7 hours and about 60 x 0.69 = 54 minutes.  (60 minutes in 1 hour)

 

Dr. G.