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 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

Question 9. Factor x^2 - 6x + 9. A (x - 3) B (x - 3)(x + 3) C (x - 3)^2 D 9x + 3)^2
Log(2)+log(4) Rewrite the following in the form log(c)
What is change in supply
Given the function [tex]f(x) = - x ^{2} - 6[/tex], which of the following transformations occur? (There can be more than one)a) vertical stretchb) vertical tr
Pleaseeeee help me solve this
(1/4) raised to the 3z-1 = 16 raised to the z+2 multiplied by 64 raised to the z-2
calculate the pressure of 2.78 g of Ne in a 5.00 L flask at -10°C
Need Answers Quick!!!!What is the purpose of structural components such as frames, bearings, and mounts?A.) Connect two rotating parts of a machine.B.) House, s
Use the slope formula to determine the slope of the line that passes through the points A(-5, 9) and B(-5, 6). 3 undefined zero
When did the American revolution start