Answer:
Chicago - Denver: [tex]d_{1} = 199.08\,mi[/tex], Mexico City - Denver: [tex]d_{2} = 1416.87\,mi[/tex]
Step-by-step explanation:
The latitudes of Chicago, Mexico City and Denver are 42° 35' N (+ 42.583), 19° 29' 52'' N (+ 19.498) and 39° 44' 21' N' (+ 39.739), respectively.
The distances are:
Chicago - Denver
[tex]d_{1} = \left(\frac{42.583 - 39.739}{1}\right)\cdot (70\,mi)[/tex]
[tex]d_{1} = 199.08\,mi[/tex]
Mexico City - Denver
[tex]d_{2} = \left(\frac{39.739-19.498}{1}\right)\cdot (70\,mi)[/tex]
[tex]d_{2} = 1416.87\,mi[/tex]
