The equation d=rt is used to calculate distance rate or time, where d is the distance (in feet), r is the rate (in feet per second), and t is there time (in seconds). Consider The statements below that describe the running rates for three people. Graph the equation that represents the rate of the fastest person. Payton runs for 20 seconds and goes 380 feet. Jaime runs at a rate of 20 feet per second. Nguyen runs 450 feet in 25 seconds.