Question

you are traveling down the interstate averaging 50 MPH. How much has passed when you have traveled 120 miles?

Answer 1

I assume you are asking how much time has passed
now, we can set up a proportion with this:
let x = time(in hours)

`(120miles)/(50miles) = (x)/(1 hour)`
we cross multiply to get:

`50x=120`
divide both sides by 50 to get:

`x= (120)/(50) =2.4= (12)/(5)=2 (2)/(5)` hours