dylaneverton1p7v5t6 dylaneverton1p7v5t6

03-05-2018
Mathematics

contestada

If 400 bricks measuring 81" by 31" are required to build a wall 42 ft. high, how long is the wall? feet.

Respuesta :

popalabdulqayou popalabdulqayou

14-05-2018

let b bricks:

b= 400, let H height and l length

Area = 81*31 or 6.75*2.58 = 17.44 ft²

b(17.44ft²)=Hl

400(17.44 ft²) =42 l

l= 6975/42 = 166.07

so the length of the wall is 166 ft approximately as a whole number

Answer Link

Otras preguntas

The european nation with the strongest economy is

Each of us weighs a tiny bit less on the ground floor of a skyscraper than we do on the top floor. One reason for this is that _____. A. the gravitational fie

How should succesful businesses respond in a crisis? How does this information relate to our own lives when facing a personal crisis? Give a total of 5 reasons.

which type of volcano does not form a mountain

The record high January temperature in Austin, Texas, is 90 degrees F The record low January temperature is -7 degrees F, Find the difference between the high a

-1 1/6 - (-2 1/3) = Please explain how you got the answer! :)I need the answer quickly!!!

All of the questions

I cannot figure out how to do these two questions. If someone could please show me step by step that would be awesome. Thanks in advance

Neolithic people developed systems of math

All of the questions