[tex]\boldsymbol{\mathbf{Answer}}[/tex]
[tex]\boldsymbol{\mathbf{Scale\,factor \,of\, the \,model \,is\, 0.01\,}}[/tex]
[tex]\boldsymbol{\mathbf{Step-by-step\,explanation}}[/tex]
Carlo's scaled bridge model spans 6 inch.
Actual bridge spans 50 feet.
We know that,
1 feet = 12 inches.
i.e = [tex]{12}\times{50}[/tex]
actual bridge span = 600 inches.
Scale factor of the model is,
= [tex]\frac{6}{600}[/tex]
[tex]\boldsymbol{\mathbf{Scale factor = 0.01}}[/tex]
That means the scale model is 0.01 time smaller than actual model.