85/15 is 5 2/3
so, to find 85% with 15%, you would multiply 12 (also 15%) by 5 2/3.
12*5 2/3=68.
you could also find it using the 1% method:
1% of 15 is .15.
.15*85=68.
Hope this helps!
Answer: 1.75 cubic feet concrete is needed.
Step-by-step explanation:
Alright, lets get started.
The volume of the pillar is : ![\pi r^2h](https://tex.z-dn.net/?f=%5Cpi%20r%5E2h)
We have given the height is 5 feet.
We have given the diameter is 4 inches.
So the radius will be : ![\frac{4}{2}=2 \ inches](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B2%7D%3D2%20%5C%20inches)
Converting inches into feet.
The radius will be :
![= 0.167 feet](https://tex.z-dn.net/?f=%3D%200.167%20feet)
So the volume of the cylinder will be : ![\pi * 0.167^2*5](https://tex.z-dn.net/?f=%5Cpi%20%2A%200.167%5E2%2A5)
So the volume of the cylinder will be : ![0.4380 \ cubic \ feet](https://tex.z-dn.net/?f=0.4380%20%5C%20cubic%20%5C%20feet)
As there are 4 pillars, so total volume will be : ![4*0.4380](https://tex.z-dn.net/?f=4%2A0.4380)
So, total volume will be : ![1.75 \ cubic \ feet](https://tex.z-dn.net/?f=1.75%20%5C%20cubic%20%5C%20feet)
Hence 1.75 cubic feet concrete is needed. : Answer
Hope it will help :)
Answer:
3x^6+x^5-x^4-6x^3+x^2+3x-1
Step-by-step explanation:
Answer:
38 people
Step-by-step explanation:
add 11, 18, and 9 together