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28 November, 07:26

A model rocket is 3 inches long. The real rocket is 120 feet long.

What is the unit rate that describes the relationship of the real rocket to the model rocket?

A. 360 in./ft

B. 40 in./ft

C. 40 ft/in.

D. 360 ft/in.

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Answers (1)
  1. 28 November, 11:08
    0
    The units are the complete story on this question. All of the choices are over 1 so the units make the answer over one. It takes more feet than it does inches to make the scale. The correct units are 120 feet / 3 inches. That makes A and B both incorrect.

    You can't get 360 by any method but multiplication. The units for multiplication would be ft*in. So D is wrong. That only leaves you with C which is the answer.
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Home » Mathematics » A model rocket is 3 inches long. The real rocket is 120 feet long. What is the unit rate that describes the relationship of the real rocket to the model rocket? A. 360 in./ft B. 40 in./ft C. 40 ft/in. D. 360 ft/in.
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