SOLUTION: Ricardo drives 28 miles in half an hour. What is his average rate of speed?

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Question 677931: Ricardo drives 28 miles in half an hour. What is his average rate of speed?
Answer by madman1101(7) About Me  (Show Source):
You can put this solution on YOUR website!
rate=distance/time
s=speed
s=28/.5 (.5 for half an hour)
multiply by 2 to get rid of the denominator
s=56
speed=56 mph