Jemma needs to journey to Bukhara for the Festival of Shom. To get there in time, she needs to travel 40 miles each day. When she reaches the halfway point, the Oasis of Qoof, she realizes she has only been traveling 20 miles per day. How fast does she need to travel for the rest of her journey in order to make it on time? PLEASE HELP!! :)

Try setting the problem up as an equation, we'll help you from there. Hint there are a couple of variables, here the number of days and the rate she must now travel.