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

Which statement is NOT correct? A. All dangerous drugs are illegal. B. There are more carcinogens in marijuana than there are in tobacco. C. Cocaine is a st
2. A truck speeds up from a velocity of 6 m/s to 14 m/s in 4 seconds. What is the trucks acceleration? SHOW YOUR WORK 3. A car starts from rest and reaches 15
9x-1=11 how would I solvr this problem
Please really need help on this thanks
What was the purpose of a camp meeting?
A motorboat traveling with the current went 80 miles in 4 hours. Against the current, it took 5 hours to travel the same distance. Find the rate of the motorboa
help me please!!!!!!!
(-(-)(-)(-10x))=-5 solve for x
what is the importance of electron shell each year
Between 1900 and 2006 , total world steel production : Increased Decreased