Carlos made a scale model of a local bridge. The model spans 6 inches; the actual bridge spans

50 feet

Carlo's scaled bridge model spans 6 inch.

Actual bridge spans  50 feet.

We know that,

1 feet = 12 inches.

i.e  =

actual bridge span = 600 inches.

Scale factor of the model is,

=

That means the scale model is 0.01 time smaller than actual model.