Elliot is building a sandbox in the shape of a triangle. A model of the sandbox is shown. Which expression represents the perimeter of Elliot's sandbox? (1 point) Responses 3x+10 3 x plus 10 3x−2 3 x minus 2 x+10 x plus 10 x+11
The perimeter of a triangle is the sum of the lengths of its sides.
Looking at the model of the sandbox, we can see that there are three sides: one side of length x, another side of length x+10, and the last side of length x+11.
To find the perimeter, we add up the lengths of these three sides: x + (x+10) + (x+11).
So, the expression that represents the perimeter of Elliot's sandbox is: 3x + 21.
To find the perimeter of a triangle, we need to add up the lengths of all its sides.
Looking at the model of the sandbox, we can see that it is a triangle with three sides.
Let's label the lengths of the sides as x, x+10, and x+11.
So, the expression that represents the perimeter of Elliot's sandbox is:
x + x+10 + x+11
Simplifying this expression, we get:
3x + 21
Therefore, the correct expression that represents the perimeter of Elliot's sandbox is:
3x + 21.
To find the perimeter of Elliot's sandbox, we need to add up the lengths of all three sides of the triangle.
Looking at the model of the sandbox, we see that one side of the triangle is labeled as "x," another side is labeled as "10," and the third side is labeled as "x + 1."
So, the expression that represents the perimeter of Elliot's sandbox is:
Perimeter = x + 10 + (x + 1)
To simplify this expression, we can combine like terms:
Perimeter = x + x + 10 + 1
Perimeter = 2x + 11
Therefore, the correct expression representing the perimeter of Elliot's sandbox is "2x + 11."