An interior decorator chose to hang a collection of square mirrors in a client's family room. Each mirror is framed by four same-sized pieces of wood, as
shown in the
diagram. When the mirrors are shipped, the outside of the frame is wrapped in foam
strips.
The manufacturer knows that the four framing pieces cover 75 square inches. How
many inches of foam strips does the manufacturer need to use in order to ship a mirror?
Х
Х
.
5 in.
Write an equation to represent the situation. Then solve your equation and explain
whether there are any invalid roots based on the context. Make sure to include how
many inches of foam strips are needed.