Question

A hotel manager is adding a tile border around the rectangular pool. Let represent the width of the pool in feet. The length is

feet more than
times the​ width, as shown. Write two expressions that represent the perimeter of the pool.
LOADING... Click the icon for a diagram of the pool.
Question content area bottom
Part 1
Which expressions will give the perimeter of the​ pool? Select all that apply.

Answer 1

Substituting into the formula for the perimeter of a rectangle, the perimeter is
`2\left(n+3 (1)/(2) n +4 (1)/(2) \right)=2n+7n+9=\boxed{9n+9}=\boxed{9(n+1)}`