Katieeminchh7509 Katieeminchh7509
  • 04-07-2017
  • Mathematics
contestada

The perimeter of a rectangle is twice the sum of its length and its width the perimeter is 28 M and it's length is 2 m more than twice its width what is its length

Respuesta :

ghanami
ghanami ghanami
  • 05-07-2017
hello : 
x : length     y : width
2(x+y) = 28....(1)
x= 2y+2....(2)
subsct in : (1)
2(2y+2+y) =28
3y+2=14
 3y=12
y= 4 m
x= 2(4)+2 = 10 m
Answer Link

Otras preguntas

A reason why slavery developed in the American colonies was
If you flipped a penny 99 times and each time it came up heads, then the chance of the penny coming up heads again is ____ . 50% 1% 100% 25%
How did the Pacific railway acts influence western settlement
Increased world competition is one way that farming in the United States changed in the late 1800s. True or False?
What produces the largest amount of federal revenue in the United States? A. individual income tax B. corporation income tax C. estate taxes D. excise taxes
Which layer of the Earth contains most of the Earth's mass? A.outer core B.crust C.inner core D.mantle
what is 0.008 as a fraction
Where did the Black Death originate? A. western Europe B. the Americas C. Africa D. Southwest China
Which term is defined as “a legal doctrine that permitted racial segregation in public facilities?”
sufijos de coleccionar