To solve for this question, set up a proportion where x represents the amount of miles Carlos walks. This would look like this:
3/44=x/80
Once you have set up your proportion, cross multiply:
44*x=80*3
44x=240
Once you have done that, divide both sides by 44 and solve for x:
44x/44=240/44
x=240/44
When you solve for x, you get that Carlos walks about 5.45 miles in 80 minutes.
