Running speeds and Miles it takes to run miles?

So I’m trying to understand How Fast a person runs a mile. Is it like this?
If I run 8mph I would run 8 miles every hour?
If I ran 10 mph I would run 10 miles Every hour? if I ran 15 mph I would run 15 miles every hour? hence the name MPH?
Running speeds and Miles it takes to run miles?
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