Answer: Number of sand bags are 105
Step-by-step explanation:
Alright, lets get started.
The diameter of pool is given as : 
The radius of pool will be : 
So the area of the pool will be:
Area = 
Area = 
Area = 
Area = 
3 square feet is covered by 1 sand bag, so
314.16 square feet will be covered by : 
So, no of sand bag = 
Rounding off to nearest number
Number of sand bags are 105 : Answer
Hope it will help :)
Answer:
C
Step-by-step explanation:
using the pythagorean theorem,
a²+b²=c²
8²+7²=c²
64+49=c²
113=c²
10.63=c
For example,area = a, length = l, width = w
First we write two equations. The easier equation is the area equation, which we know to be
a = l x w
So that the first equation is :
<span>96 = l x w </span>
we make the second equation of the following statements :
<em>The length of a rectangle is 2 foot less than 3 times its width.</em>
<span>so it becomes :
l = 3w - 2
</span>
<span>To solve, we can use the substitution method.
</span>
![96 = l \times w\\96=(3w-2) \times w\\96=3w^{2}-2w\\3w^{2}-2w-96=0~~~~~~[now\ factor\ the\ equation]\\ (3w+16)(w-6)=0](https://tex.z-dn.net/?f=96%20%3D%20l%20%5Ctimes%20w%5C%5C96%3D%283w-2%29%20%5Ctimes%20w%5C%5C96%3D3w%5E%7B2%7D-2w%5C%5C3w%5E%7B2%7D-2w-96%3D0~~~~~~%5Bnow%5C%20factor%5C%20the%5C%20equation%5D%5C%5C%20%283w%2B16%29%28w-6%29%3D0)
<span><em>So if our width is 6, Now substitute the value of w = 6 into equation 2 </em></span>
So "w" = 6 and "l" = 16, and if we multiply them together, we get the correct area, 96. So our dimensions are 6 by 16.
Answer:
C) 60 ft
Step-by-step explanation:
From any dot in the graph you can figure out the speed.
Let's take the one at 2 minutes, because it is on a grid point.
That one tells us that in 2 minutes, the animal travels 40 feet.
That means in 1 minute, it travels half that, i.e., 20 feet.
So in 3 minutes it will travel 20*3=60 feet.
9514 1404 393
Answer:
(x, y) = (34/5, -4/5) = (6.8, -0.8)
Step-by-step explanation:
Subtract the first equation from the second to eliminate x.
Substituting for y in the second equation, we can find x.
The solution is (x, y) = (34/5, -4/5) = (6.8, -0.8).
