Final answer:
The great white shark's speed while gliding through the water is 15 meters per second, calculated by dividing the distance traveled (300 meters) by the time taken (20 seconds).
Step-by-step explanation:
If a great white shark glides 300 meters in 20 seconds, the shark’s speed is calculated by dividing the distance covered by the time it took. The formula for speed is speed = distance / time. Therefore, to find the speed, we divide 300 meters by 20 seconds:
Shark’s speed = 300 meters / 20 seconds = 15 meters per second.
The shark is therefore gliding at a speed of 15 meters per second.