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An engineer makes a model of a bridge using a scale of 0.5 cm = 3 feet. The length of the actual bridge is 123 feet. What is the length of the model?

Respuesta :

rococo908

Answer:

20.5 cm

Step-by-step explanation:

Set up a proportion where x is the length of the model in cm:

[tex]\frac{0.5}{3}[/tex] = [tex]\frac{x}{123}[/tex]

Cross multiply and solve for x:

3x = 61.5

x = 20.5

So, the model's length is 20.5 cm

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