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22 February, 10:32

Which of the following expressions uses the correct conversion factor to convert 35.7 km into the equivalent distance in miles? A) 35.7 km * 1 km/1.609 milesB) 35.7 km * 1 mile/1.609 milesC) 35.7 km * 1 km/1.609 kmD) 35.7km * 1 mile/1.609 km

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  1. 22 February, 13:31
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    Answer: D) 35.7km * 1 mile/1.609 km

    Explanation:

    Given that;

    We need to convert 35.7km to miles

    And we know that 1.609km makes 1 mile = 1.609km/1mile

    To convert it to mile we need to obtain the number of miles per kilometre

    = 1 / (1.609km/mile)

    = 1mile/1.609km

    Then we can now multiply the conversion rate by the number.

    = 35.7km * 1mile/1.609km

    = 22.19 miles

    Note that the sign must cancel out to give miles.
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