Answer:
x=4
y=0
Step-by-step explanation:
Answer:
The driving time at 54 miles per hour is 37.04 hours.
Step-by-step explanation:
Answer:
See Explanation
Step-by-step explanation:
Given
![1\ can = 2.2m^2](https://tex.z-dn.net/?f=1%5C%20can%20%3D%202.2m%5E2)
Required
Determine the number of cans for the wall
The dimension of the wall is not given. So, I will use the following assumed values:
![Length=20m](https://tex.z-dn.net/?f=Length%3D20m)
![Width = 44m](https://tex.z-dn.net/?f=Width%20%3D%2044m)
First, calculate the area of the wall
![Area = Length * Width](https://tex.z-dn.net/?f=Area%20%3D%20Length%20%2A%20Width)
![Area = 20m * 44m](https://tex.z-dn.net/?f=Area%20%3D%2020m%20%2A%2044m)
![Area = 880m^2](https://tex.z-dn.net/?f=Area%20%3D%20880m%5E2)
If ![1\ can = 2.2m^2](https://tex.z-dn.net/?f=1%5C%20can%20%3D%202.2m%5E2)
Then ![x = 880m^2](https://tex.z-dn.net/?f=x%20%3D%20880m%5E2)
Cross Multiply:
![x * 2.2m^2 = 1 * 880m^2](https://tex.z-dn.net/?f=x%20%2A%202.2m%5E2%20%3D%201%20%2A%20880m%5E2)
![x * 2.2m^2 = 880m^2](https://tex.z-dn.net/?f=x%20%2A%202.2m%5E2%20%3D%20880m%5E2)
![x * 2.2 = 880](https://tex.z-dn.net/?f=x%20%2A%202.2%20%3D%20880)
Make x the subject
![x = \frac{880}{2.2}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B880%7D%7B2.2%7D)
![x = 400](https://tex.z-dn.net/?f=x%20%3D%20400)
400 cans using the assume dimensions.
So, all you need to to is, get the original values and follow the same steps
Warning: This might be rough...
First draw it out. Label the angles at the corners of the triangle 60 (definition of equilateral triangles). Now draw a line from the center of the circle to the corner, splitting the corner in half. Label this line R and a corner as 30 degrees. No to find the height of this triangle, you do rsin(30). The base of this triangle is 2rcos(30). Now find the area of this mini triangle (rsin(30)*2rcos(30)/2=r/2*rsqrt(3)/2=r^2sqrt(3)/4). Now multiply this by 3 because you have 3 mini triangles... to get...
<span>r^2 3sqrt(3)/4</span>
Answer:
in the survey, 16 out of 80 students who where asked favored chicken nuggets.
so we need to calculate like this:
530 * 16/80
=530 * 1/5
=530/5
=106
hope this helps your understanding, wish you good grades