3. A rectangle has width 2x and length 2x+4.

2x metres

(2x + 4) metres

a) Find an expression for the perimeter of this rectangle.

b) Find the value of x if the perimeter is 240 metres.

c) Find the length and the width.

4. a) Write an expression for the perimeter of the rectangle.

(x - 2) cm

(3x + 4) cm

b) Simplify the expression.

c) What is the perimeter when x = 5?

d) What is the value of x when the perimeter is 60 cm?

e) What are the dimensions of the rectangle when the perimeter is 60 cm?

Question

Kaelyn Booth

14 February, 22:21

+4

Answers (1)

Know the Answer?

Dandy · Answer 1

A-8x+8

b-29

c-w=58 l=62

4a-2 (3x+4) + 2 (x-2)

b-8x+4

c-44

d-7

e-5 and 25