kaylard7118 kaylard7118
  • 02-09-2017
  • Mathematics
contestada

The perimeter of a rectangle is 44 inches, and its area is 105 square inches. find the length and width of the rectangle.

Respuesta :

APAgony
APAgony APAgony
  • 02-09-2017
Perimeter = (Length + Width)x2
Area = LengthxWidth

P=(L+W)x2
P/2=L+W
L=P/2 - W

Area=(P/2 - W)(W)
A=WP/2-W^2
105=W(44)/2 - W^2
105=22W - W^2
W^2-22W+105=0
(W-7)(W-15)=0
Width= 7 or 15

A=LxW
105=Lx7
105/7=L
L=15

Length is 15 inches, Width is 7 inches.
Answer Link

Otras preguntas

based on your knowledge of word Parts what does the word intervene mean
What is the "Great Pacific Garbage Patch"? A large area of marine debris concentrated by rotating ocean currents A large area around the Pacific Rim where deb
Raveena is making a professional presentation for a newly launched product of her company. She wants to incorporate the following features in her presentation.
what is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100
The length of a rectangle is x times the square root of 100. The width is one-half y more than three-halves x. Given that the area of the rectangle is 125 cm2,
complete the solution of the equation. find the value of y when x equals to 28 x+3y=28
which expression is not a polynomial?
What verb tense should I use when talking about the past?
You give a $4 tip for a meal that cost $22. Approximately what percent of the bill was your tip?
Where do you put the negative "ne que" in the phrase "Ils nous ont fait visite une fois"?