Respuesta :
12 miles if you are walking 3 miles every hour then after 4 hours you would have walked 12 miles because 3 milesx4 hours=12
Correct Answer is 12 miles.
Unitary Method:
The unitary method is a method in which you find the value of a unit and then the value of a required number of units.
The formula of the unitary method is to find the value of a single unit and then multiply the value of a single unit by the number of units to get the necessary value.
This problem is one of the example of unitary method.
So, given Gavin walks 3 miles per hour.
Then Gavin walks 3 x 4 in 4 hours.
i.e., 12 miles.
Learn more about Unitary method here: https://brainly.com/question/19423643?referrer=searchResults
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