Final answer:
Debra's driving distance was calculated using the formula d = rt, with a rate of 51.2 miles per hour and a time of 2 hours, resulting in a total distance of 102.4 miles.
Step-by-step explanation:
Solving a One-step Word Problem: Distance Calculation
Debra went for a drive in her new car at a speed of 51.2 miles per hour for 2 hours. To calculate the distance she drove, we use the formula d = rt, where d is distance, r is rate (or speed), and t is time. For Debra's trip, the rate r is 51.2 miles per hour, and the time t is 2 hours.
Step-by-step calculation:
Solve for the unknown: d = 51.2 miles/hour × 2 hours = 102.4 miles.
Therefore, Debra drove 102.4 miles during her 2-hour trip.