Question

3. PLACEMATS Find the missing side of the placemar shoun if the perimeter is 28x - 11 inches ? (8x + 2) in 8x + 2) in (5x + 12) in

Answer 1

As given that the perimeter(P) is 28x-11 inches.

And the sides are:

(8x+2), (8x+2), (5x+12)

Let the another side as L:

So the perimeter of the given is calculate is:

`\begin{gathered} P=(8x+2)+(8x+2)+(5x+12)+L \\ 28x-11=21x+16+L \\ L=28x-21x-11-16 \\ L=7x-27 \end{gathered}`

So the missing side have length 7x-27 inches.