Bret had a rectangular piece of plywood with dimensions x feet and 10 feet. He put a frame along 15 feet of the edge of the plywood.
An expression is shown below.

(2x + 20) - 15

Part A: What does the expression represent? (4 points)

Part B: What does 2x + 20 represent? (3 points)

Part C: What does 2x represent? (3 points)

Question

Bret had a rectangular piece of plywood with dimensions x feet and 10 feet. He put a frame along 15 feet of the edge of the plywood.
An expression is shown below.

(2x + 20) - 15

Part A: What does the expression represent? (4 points)

Part B: What does 2x + 20 represent? (3 points)

Part C: What does 2x represent? (3 points)

anonymous · Answer

Ok 2x +20 the perimeter of the plywood rectangle, now subtract 15 to find how much more edging he needs
2x is the combined length of the unknown sides.