Explanation
Correct answer: D.
Choice D is correct. Since minute = seconds and hour = minutes, it follows that hour = , or seconds. Using this conversion factor, the space station's average speed of miles per second is equal to an average speed of , or miles per hour.
Desmos solution:
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice A
Choice A is incorrect. This is the space station's average speed in miles per minute.
Choice B
Choice B is incorrect. This is double the space station's average speed in miles per minute, or the number of miles the space station travels on average in minutes.
Choice C
Choice C is incorrect. This is triple the space station's average speed in miles per minute, or the number of miles the space station travels on average in minutes.