john349 john349
  • 02-10-2017
  • Mathematics
contestada

The length of a rectangle is four times its width. If the area of the rectangle is 400 cm squared, find its perimeter

Respuesta :

scienceSmarite12
scienceSmarite12 scienceSmarite12
  • 02-10-2017
Length=x
Width=4x
4x•x=400 sq cm
x= 10 cm
4x= 40 cm
P=2•10cm+2•40 cm
=100 cm
Answer Link

Otras preguntas

Add or remove commas Lou and I climbed the steep rocky, trail because we heard there would be free sodas at the summit.
Anyone??????)3!&?&?:
What are the two phases of cell destruction common to strokes head traumas and spinal cord injuries?
Which of the following is part of the peripheral nervous system? Kidneys Spinal cord Brain Nerves
Analyzing Ancient Greek culture
(ASAP PICTURE ADDED) What is the simplified form of the following expression?
In a symphony orchestra, there are 2 vacancies for cellists only, 4 vacancies for violinists only and 4 vacancies for any of these musicians. In how many ways c
Which sentence from the passage would provide evidence for how frustrated and tired the narrator was on Sunday night? A. "It is sometimes difficult to tell exa
The floor of a bedroom is 12 feet by 15 feet and the walls are 7 feet high. One gallon of paint covers 250 square feet. How many gallons of paint do you need to
What is the value of x?