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

heian courtiers were expected to express sensitivity to blank and blank in their writing, especially in their poems.

A 1-kg mass is dropped from a third floor window. The acceleration of the mass is found to be 8 m/s2. What is the average force of air resistance? A) 1.8 N B) 7

What is the value of -3.5

algebra 1, i don’t understand step 2

What are three reasons on why there is a need for government in taxation?

Prompt 3: Why do you think it is so important to have producers (autotrophs), consumers (heterotrophs), and decomposers (detritivores) in an ecosystem?

Marrisa added 1.56 and 13.47. She got 29.07. What mistake could Marrisa have made? She forgot to move the decimal point to the left after she added. She lined u

Choose what happens during the first trimester. Embryo is moved into the uterus Placenta forms around embryo Body systems begin forming in the fetus Body featur

An active sphagnum bog deposits a depth of about 1metre of peat per 1000 years. Roughly how many millimetres is that perday? A) 0.0003 B) 0.003 C) 0.03 D) 0.3 E

What is the domain of f(x) + g(x)