Lexie is making a model of the Empire State Building. The scale of the model is 1 inch = 9 feet. The needle at the top is 31.5 feet tall. How big should the needle be on the model?

Respuesta :

The needle at the top of the model should be 3.5 inches.

Answer:

3.5 inches

Step-by-step explanation:

Set up a proportion:

[tex]\frac{9 ft}{1 in} = \frac{31.5 ft}{x in}[/tex]

Cross multiply in order to solve for x:

9x = 31.5

Divide by nine:

x = [tex]\frac{31.5}{9}[/tex]

Simplify:

x= 3.5

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