john349 john349

02-10-2017
Mathematics

contestada

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

Respuesta :

HannahVance99 HannahVance99

02-10-2017

If width of rectangle is a, then length is 4a and area = 4a2 which is given as 100 m2. So a=5. Perimeter of rectangle= a+a+4a+4a = 10a= 50m

Answer Link

Otras preguntas

Class 8 squares and square roots without adding find the sum of a) 1+3+5+7+9+11+13+15+17.

Numerical Problems: a. A man runs 1200 m on a straight line in 4 minutes. Find his velocity. can anyone tell me with process

what we can seprate sand and iron flings

34 Proportions Mathematics, Pre-Algebra Question 2 A boat can travel 21 miles on 7 gallons of gasoline. How far can it travel on 17 gallons?

John's family drinks 7/9 of milk a day. How many liters do they drink in 4 days?

What animal is the dominant species in Yellowstone National Park?

What is the three hundred and twenty six to the nearest ten

Quadrilateral ABCD is a square. What is the length of AC? Select the best answer from the choices provided. A. 11 B.15.556 C.19.052 D. 22

Do you know this it is for social studies

Point M is the midpoint of AB. The coordinate of point A are (-8,3) and the coordinates of M are (-2,1). What are the coordinates of point B?