PrincessNeNe63091 PrincessNeNe63091
  • 02-09-2017
  • Mathematics
contestada

The length of a rectangle is twice its width. if the area of the rectangle is 162 m2 , find its perimeter.

Respuesta :

texaschic101
texaschic101 texaschic101
  • 02-09-2017
L = 2W
A = L * W
A = 162

162 = 2W(W)
162 = 2W^2
162/2 = W^2
81 = W^2
sqrt 81 = W
9 = W

L = 2W
L = 2(9)
L = 18

P = 2(L + W)
P = 2(18 + 9)
P = 2(27)
P = 54 <===== perimeter is 54 m
Answer Link

Otras preguntas

How do fossil fuels contribute to global warming?
William purchase 1/2 dozen cookies for $5.88. How to determine the unit cost of the cookies
What change occurs in muscles at the anaerobic threshold?
Why is it harder to amend the constitution than to pass a law?
In 1998, Canada’s highest court declared that _____.
How Henry Ford was able to make automobies affordable for the majority of Americans
Which reason did many Americans have for coming to Texas in the 1820s
What is 216 in exponential form? A) 26 B) 35 C) 44 D) 63
After the box comes to rest at position x1, a person starts pushing the box, giving it a speed v1. when the box reaches position x2 (where x2>x1), how much w
Lucas found some old things in the attic. Say to whom they belong by rewriting the phrases. Use the correct possessive adjective for each. unos libros de noso