SOLUTION: Ryan drove 819 miles in 13 hours. At the same rate, how long did it take him to drive 504 miles?

Question 1173442: Ryan drove 819 miles in 13 hours.
At the same rate, how long did it take him to drive 504 miles?
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
if he drove 819 miles in 13 hours, then his rate was 819/13 = 63 miles per hour.

if he drove 504 miles, then it would take him 504/63 = 8 hours.

rate * time = distance is the formula used here.

when he drove 819 miles in 13 hours, the formula became rate * 13 = 819.
solve for rate to get rate = 819/13 = 63

when he drove 504 miles at a rate of 63 miles per hour, the formula became
63 * time = 504
solve for time to get time = 504/63 = 8

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