Sketch the algebra-tile shape at right on your paper. Write an expression for the perimeter of the shape. Then find the perimeter for each of the given values of x. Homework Help ✎
x = 7 units
x = 5.5 units
Find the perimeter as you did in problems 6-96 and 6-106, including x as part of the expression.
P = 4x + 4
Substitute 7 for x in the expression of the perimeter.
Evaluate the expression.
4(7) + 4 = ?
Substitute 5.5 for x in the expression of the perimeter and evaluate.
See part (a) or (b).