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6 October, 07:08

For every 140 feet that Kelly rides on her bicycle, the wheels turn 20 times. About how many times do the wheels turn in 5 miles? (1 mile = 5,280 feet)

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  1. 6 October, 07:31
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    3771.43 times [roughly 3771 times]

    Step-by-step explanation:

    The unit ratio given is:

    140 feet : 20 times

    How many feet is that per 1 time wheel turning?

    140/20 = 7 feet

    So, each wheel revolution covers 7 feet [1 time turn = 7 feet]

    Now,

    We want the number of times wheel turns in 5 miles. First, converting 5 miles to feet:

    1 mile = 5280 ft

    5 mile = 5 * 5280 = 26,400 feet

    Hence, the number of times it turns in 5 miles is:

    26,400 feet / 7 feet = 3771.43 times [roughly 3771 times]
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