Ava is building a rectangular sandbox a model of the sandbox dimensions are shown which expression represents the perimeter of Ava’s sandbox

Question

asked Sep 10, 2020 167k views

1 Answer

Ine · Answer 1 · 2020-09-15T12:42:08+0000

Answer:

Last option:

Explanation:

The perimeter of a rectangle can be calculated with the following formula:

P=2l+2w

Where "l" is the lenght of the rectangle and "w" is the width of the rectangle.

In this case, you can identify from the figure that:

$l=3x+14\\w=3x$

Then, you can write the following expression to represent the perimeter of the rectangle:

2(3x+14)+2(3x)

Finally you must simplify the expression; then you get:

=6x+28+6x=12x+28