1 a. 
Nancy travels in an airplane a distance of 900 miles. For onethird of the distance, the airplane flies at a speed of 660 miles per hour, and for the rest of the distance, it flies at a speed of 560 miles per hour. How long does the trip take?


2 a. 
Noah's airplane trip took 5.6 hours. For onefourth of that time, the airplane flew at a speed of 600 miles per hour, and for the rest of the time, it flew at a speed of 800 miles per hour. What distance did Noah travel?


3 a. 
Noah's airplane trip took 2.8 hours. For onehalf of that time, the airplane flew at a speed of 800 km/h, and for the rest of the time, it flew at a speed of 840 km/h. What distance did Noah travel?

