Geometry Application. The perimeter of a square is 36 inches. Write and solve an equation to find the length of each side of the square. (Hint: Remember that the perimeter is the distance around a figure.)

144

Step-by-step explanation: simple do 36x4 which equals 144. the for comes from all sides of the shape

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".