Answer:
C=15
Step-by-step explanation:
Equation: (7c-7)+(6c-8)=180
180 because a STRAIGHT LINE is 180degrees
Then you do 'math'
(7c+6c)-15=180
13c=195
c=15
Here is a link to help you find the answer:
https://www.khanacademy.org/math/algebra2/rational-expressions-equations-and-functions/simplify-rati...
Hope this helps!
Answer:
um D
Step-by-step explanation:
First way is create an equation like this:
and calculating it.
Second way is to find 37% of each number and then add it
![0.37*27 \frac{3}{5}](https://tex.z-dn.net/?f=0.37%2A27%20%5Cfrac%7B3%7D%7B5%7D%20)
+
![0.37* \frac{15}{9}](https://tex.z-dn.net/?f=0.37%2A%20%5Cfrac%7B15%7D%7B9%7D%20)
In both cases the result is 10.829
we are given
radius is 3370 mm
![r=3370mm](https://tex.z-dn.net/?f=%20r%3D3370mm%20)
and shape is sphere
so, we can use surface area of sphere formula
![S=4\pi r^2](https://tex.z-dn.net/?f=%20S%3D4%5Cpi%20r%5E2%20)
now, we can plug value of r
![S=4\pi (3370)^2](https://tex.z-dn.net/?f=%20S%3D4%5Cpi%20%283370%29%5E2%20)
now, we can solve for S
and we get
............Answer