Well, you get 2n miles for each of the first 3 days and n miles for each of the other 4. That is, 2n+2n+2n+n+n+n+n=56.5. That is, 10n=56.5 or n=5.65 miles each of the last 4 days. The first 3 days, Luke jogged double that, that is, 11.3 miles each day.
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Luke jogged a total of 56.5 miles last week by jogging the same distance, d , each day for 3 days and half that distance on the other 4 days. This can be represented by the equation 5 d = 56.5 , leading to d = 11.3 miles for the first 3 days and 5.65 miles for the other 4 days. Therefore, he jogged 11.3 miles each day for 3 days and 5.65 miles for the remaining days.
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