Aroom is 18ft long by 18ft wide. a blueprint shows the room to be 3.5 inches long. what is the width of the room in the blueprint?

Length of width in the blueprint is 3.5 inches

Step-by-step explanation:

We have given dimensions of a room as 18ft long by 18ft wide.

To represent this room dimensions in a blueprint, the dimensions of room is re-scaled as :

By length it is represented as 3.5 inches long

So we can find scaling factor here as:

Scaling factor = 3.5 / 216    (Since 18 ft = 216 inches)

Scaling factor = 7/432

Now, to get width of room in the blueprint,  we multiply actual length of width by the scaling factor.

Length of width in blueprint = scaling factor * width(in inches)

Length of width in blueprint = (7/432 ) * 216     , (Since 18ft = 216 inches)

Length of width in blueprint = 3.5 inches

So we get length of width in blueprint is 3.5 inches

4 + 5 7/9= 9 7/9

step-by-step explanation:

12cm

the answer is d