Jimmy6910 Jimmy6910

15-08-2018
Mathematics

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What is the average speed that Robin must drive to reach her friends house 170 miles away in 2 1/2 hours?

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sqdancefan sqdancefan

15-08-2018

You know the units of speed are "miles per hour." This tells you that you find average speed by dividing total miles by total hours.

... speed = (170 mi)/(2.5 h) = 68 mi/h

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