Suppose you're driving to the city at a constant speed of 75 mi/h for 50 miles. Then construction slows you to a pokey rate of 45 mi/h for the remainder of the trip. You arrive after driving 2 hours and 15 minutes. How far do you live from the city?.
A. 180 mi
B. 120 mi
C. 200 mi
D.71 mi
since time = distance/speed,
50/75 + x/45 = 9/4
You live 50+x miles away.