udy drives from Dallas to Longview, a distance of 140 miles, in 2 hours. She then drives from Longview to Shreveport, a distance of 70 miles, in 1 hour. What is Judy’s average speed for the entire trip?
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Answer:
average speed = distance travelled / time
= 140 + 70 / 2 + 1
= 210 / 3
= 70
therefore the average speed = 70 miles
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