paigedomino paigedomino

01-10-2019
Mathematics

contestada

The length of a rectangle is 3 times the
width. If the perimeter is 40 cm, find the
length and width.

help me please Pre-Algebra

The length of a rectangle is 3 times thewidth If the perimeter is 40 cm find thelength and widthhelp me please PreAlgebra class=

Respuesta :

marabu78 marabu78

02-10-2019

Answer:L= 3W

Perimeter = 2(l+w) = 40

2(3w+w) = 40

2*4w = 40

8w =40

w = 5

l = 3*5 = 15

Hope I helped

Answer Link

Otras preguntas

Stacy saved 30% on a single item. If she saved $60.00, what was the cost of the item before the discount?

What is the subject and predicate of this sentence. she cooked breakfast over the camp fire

Louann and Carla received equal scores on a test made up of multiple choice questions and an essay. Louann got 14 multiple choice questions correct and received

a giraffe can run 32 miles per hour. what is this speed in feet per second

what is the reference angle of 330° degrees

A train travels at a speed of 30 mph and travel a distance of 240 miles. How long did it take the train to complete it's journey?

What are the (3) most common elements that bond together to form organic compounds?

• How were historical solar system models different from our current model?

32 cups are in how many gallons

graphs are used to show how the responding variable changes in response to the ------------------- variable.