Seudónimo Seudónimo

03-02-2016
Mathematics

contestada

The length of a rectangle is three times its width its perimeter is 24 cm find its area

Respuesta :

taskmasters taskmasters

03-02-2016

Area of a rectangle is 27 cm²

Given:
Perimeter of a rectangle = 24 cm
Length = 3x
Width = x

p = 2(l + w)
24 = 2(3x + x)
24 = 6x + 2x
24 = 8x
24/8 = x
3 = x

Width = 3 cm ; Length = 3x = 3(3) = 9 cm

Area = length * width
= 9cm * 3 cm
Area = 27 cm²

Answer Link

Otras preguntas

Hunter is trying to write a proper scientific question. He is thinking of these three options: A. What is gravity? B.how does the force of gravity affect object

What 1819 event made many Americans want to elect officials who better protected their interests?

The phenotype of an animal typically does not depend on A) the genotypes of the parents. B) seasonal changes in the environment. C) the source of the anim

1.22 x 10^6 over 1.5 x 10^7

In the process of either ___ or ___ negatively charged ___ the reacting atoms form ___

25 points America explain

Plot the x-intercept(s), y-intercept, vertex, and axis of symmetry of the function. h(x)=(x+1)^2-4

Today, the average adult sleeps __________ than the average adult in the 1800s.

How many slaves were transported over the middle passage

What was found at the site of Igbo Ukwu? Why was it an important archeological find?