Final answer:
To find the total distance the plane would fly in 54 hours at the same speed, multiply the speed by the time. The plane would fly approximately 45,000 miles.
Step-by-step explanation:
To find out how many miles the plane would fly in 54 hours at the same speed, we need to calculate its speed first. We know that the plane travels 625 miles in 3/4 hours. To find the speed, we divide the distance traveled by the time taken: 625 / (3/4) = 625 * (4/3) = 833.33 miles per hour.
Now, to find the total distance the plane would fly in 54 hours, we multiply the speed by the time: 833.33 * 54 = 44,999.82 miles.
Rounding to the nearest whole number, the plane would fly approximately 45,000 miles at the same speed in 54 hours.