B. A window in the room has an actual width of 2.5 feet. Find the width of the window in the blueprint.

Blueprint width of window = 1.5 in

Step-by-step explanation:

Missing;

Ratio model

3 in : 5 ft

Given:

Actual width of window = 2.5 feet

Find:

Blueprint width of window

Computation:

Blueprint width of window = Actual width of window x (3 in / 5 ft)

Blueprint width of window = 2.5 ft x (3 in / 5 ft)

Blueprint width of window = 1.5 in

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32