Question

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?

360 ​ ft/in. ​
40 in./ft
40 ft/in.
360 ​ in./ft ​

Answer 1

Answer: The correct option is 3, i.e.,40 ft/in.

Step-by-step explanation:

It is given that the a model rocket is 3 inches long. The real rocket is 120 feet long.

The unit rate which describe the relationship of the real rocket to the model rocket is defined as,

`\frac{\text{Length of real rocket}}{\text{Length of model rocket}}= (120 ft)/(3 in.)`

`\frac{\text{Length of real rocket}}{\text{Length of model rocket}}=40ft/in.`

This unit rate is shown in option 3, therefore the correct option is 3.

Answer 2

120/3 =40

40 ft = 1 inch

so 40 ft/in is correct answer