Question

A model of a house was built using the scale 5 in: 25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?​

Answer 1

7.5 feet

Explanation:

Scale of the Model =5 in: 25 ft.

If we divide both sides by 5

`(5 in.)/(5) : (25 ft.)/(5)\\\\$1 inch: 5 feet`

If a window on the model is 1.5 inch wide, from the unit ratio derived above we then have that:

1 Inch X 1.5 : 5 feet X 1.5 feet

1.5 Inch : 7.5 feet

Therefore, if a window in the model is 1.5 in. wide, the actual window is 7.5 feet wide.