Loading [MathJax]/jax/output/SVG/config.js
web2.0calc
 
+0  
 

 Bricklayers use the formula N = 7LH to estimate the number of bricks N needed to build a wall of height H and

0
2878
1
avatar+143 
Bricklayers use the formula  N = 7LH to estimate the number of bricks  N needed to build a wall of height  H and length  L.  What is the height of a wall that is 30 feet long and that requires 2,310 bricks to build?

 

















a.


12 ft


c.


11 ft


b.


10 ft


d.


20 f

 Dec 2, 2014

Best Answer 

 #1
avatar+23254 
+8

N = 7·L·H

2310  =  7·30·H

2310  =  210·H                      (now, divide both sides by 210)

2310 ÷ 210  =  11

H = 11 feet

 Dec 2, 2014

1+0 Answers

 #1
avatar+23254 
+8
Best Answer

N = 7·L·H

2310  =  7·30·H

2310  =  210·H                      (now, divide both sides by 210)

2310 ÷ 210  =  11

H = 11 feet

geno3141 Dec 2, 2014

2 Online Users

avatar

Top Users

avatar+130466 CPhill moderator
avatar+33654 Alan moderator
avatar+15077 asinus moderator
avatar+12530 Omi67 moderator
avatar+3146 admin administrator
avatar+2234 GingerAle
avatar+1950 NotThatSmart
avatar+1930 tomtom
avatar+1782 blackpanther
avatar+1729 parmen
avatar+1517 learnmgcat

Sticky Topics