kaylannmarie4514 kaylannmarie4514

11-12-2018
Mathematics

contestada

The length of a rectangle it twice it's within. If the perimeter of the rectangle is 30 cm, find its area.

Respuesta :

15-12-2018

w - width

2w - length (l)

30 cm - perimeter

w + w + 2w + 2w = 6w - perimeter

The equation:

6w = 30 divide both sides by 6

w = 5 cm

2w = 2(5) = 10

l = 10 cm

The area of a rectangle: A = lw.

Substitute:

A = (5)(10) = 50

Answer: The area is 50cm²

Answer Link

Otras preguntas

Which of the following expressions has 3 terms? A 8x + y - z B xyz C y3 + 1

Only about ___% of people with mental illness get the treatment they need.

PLEASE HELP!!!! GIVING EXTRA POINTS AND MARKING THE BRAINLIEST ANSWER IF CORRECT!!!! In “The American Promise,” Lyndon B. Johnson argues that the right to vote

In “A Celebration of Grandfathers,” the writer describes his grandfather as “connected to the cycles that brought the rain or kept it from us.” What does this d

A cannon shell is fired straight up from the ground at an initial speed of 242 m/s. after how much time is the shell at a height of 6.30 102 m above the ground

Help anyone!? I need this done tonight and I need a math genius here

which breakthrough helped most people ? and why?

The above piece is a lithograph by M.C. Escher. How has Escher used the concept of space effectively

How do you make something up to the girl you love the most? ;) ;) Srsly :)

Name the 2 rifles used by the British and the Germans during WW1