What is the average speeda for motorcycle that travels 150 miles that started at 2: 00 and finished at 5: 30

The average speed would be 2,571.43 mph because the distance traveled is 210 seconds(3:30), and if you divide the the mile traveled(150) by the time taken you get 2,571.43 mph.

150 ÷ 210 = 2,571.43

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.