Question 686523
To solve, we must set this word problem up in the form of an equation.  Since the runner covers 5 miles per 45 mins, and we know that 60 min = 1 hour, we would set the equation up as such:

{{{5 miles/45 min = x miles/60 min}}} =

{{{5/45 = x/60}}}

Now, we can reduce the first fraction {{{5/45}}} to {{{1/9}}}

So,

{{{1/9 = x/60}}}

To solve for x, cross multiply:

{{{9*x = 60*1}}} =

{{{9x = 60}}}

Divide both sides of the equation by 9:

{{{9x/9 = 60/9}}}

Which gives us:

{{{x = 6.67}}}

So, the runner can run approximately 6.67 miles in 1 hour.