<span>if isabel runs 7 miles in 50 minutes, then you know she runs 7/50 miles in one minute, right? So multiply that by the number of minutes she did run, and you can find the distance:
</span><span> 7 ------ x 75 = 50
525 ------ 50
</span><span> If you plug that fraction into your calculator, you get 10.5, so 10 and a half miles.</span>
