Answer:
Step-by-step explanation:
Set this up as a proportion, with inches on the top and feet on the bottom for our scale. We will find the actual length first, then we'll find the width.
[tex]\frac{in}{ft}:\frac{1}{5}=\frac{2.5}{x}[/tex]
Cross multiply to get that the actual length is 5(2.5) = 12.5 feet. Now for the width:
[tex]\frac{in}{ft}:\frac{1}{5}=\frac{3}{x}[/tex]
Cross multiply to get that the actual width is 5(3) = 15 feet.
If you want the area of the room, multiply the length times the width to get
A = 15(12.5)
A = 187.5 feet squared
