Question

Lisa runs 10 miles in 75 minutes. At the same rate, how many miles would she run in 69 minutes?

Answer 1

I would set this up as a ratio:
$\frac{10}{75} = \frac{x}{69}$

From here on, you solve for x. To do so, you can cross multiply:
$690=75x$
$x = \frac{690}{75} = 9.2$

So, Lisa can run 9.2 miles in 69 minutes.

Answer 2

She would run 9.2 miles.