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28 July, 22:57

A fast car travels 420 miles in a period of 210 minutes. What is the adverage rate of change of distance of the car in miles per hour over this time period?

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  1. 29 July, 02:27
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    If you would like to know the average rate in miles per hour, you can calculate this using the following steps:

    420 miles ... 210 minutes

    x miles = ? ... 1 hour = 60 minutes

    420 * 60 = 210 * x

    x = 420 * 60 / 210

    x = 120 miles

    The correct result would be 120 miles per hour.
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Home » Mathematics » A fast car travels 420 miles in a period of 210 minutes. What is the adverage rate of change of distance of the car in miles per hour over this time period?
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