5. The perimeter of a rectangle is 160 metres.

(i) If x = the length, write down (in terms of x)

an expression for the width.

(ii) If the area of this rectangle is 1,536 m^2,

find its dimensions.

Question

Ashly Howell

14 December, 13:15

+1

Answers (1)

Know the Answer?

Micah Strickland · Answer 1

X=length y=width

(i) If p = 2x+2y then: y = (160-2x) / 2 = 80-x

(ii) If A = x*y then: 1536 = x * (80-x) 1536 = 80x - (x^2)

5. The perimeter of a rectangle is 160 metres.(i) If x = the length, write down (in terms of x)an expression for the width.(ii) If the area of this rectangle is 1,536 m^2,find its dimensions.