We have that The average number of minutes it takes her to run 1 mile
[tex]X=42min[/tex]
From the Question we are told that
Katerina runs 15 miles in 2 1/2 hours
Average number of minutes it takes her to run 1 mile
Generally
[tex]2 1/2 hour=10.5h[/tex]
[tex]10.5hours=630minutes[/tex]
Therefore
The average number of minutes it takes her to run 1 mile
[tex]X=\frac{630}{15}[/tex]
[tex]X=42min[/tex]
In conclusion
The average number of minutes it takes her to run 1 mile
[tex]X=42min[/tex]
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