the perimeter for a new rectangular penguin enclosure is to have a maximum side length of 8 meters. the width is to be twice the length (x). define a rule which give the perimeter (p) of the new enclosure.

Question

the perimeter for a new rectangular penguin enclosure  is to have a maximum side length of 8 meters. the width is to be twice the length (x). define a rule which give the perimeter (p) of the new enclosure.

anonymous · Answer

my book says the answer is p(x) = 6x. but could somebody explain it to me?

anonymous · Answer

Hi, shivadiva,

You say that the enclosure is to be rectangular and that the width is set to be twice the length, where the length is x.  So,

Length = x
Width = 2x

Perimeter is then

2*(length) + 2*(width) = 6x

anonymous · Answer

thankyou :D