There were<span> 471 </span>adult<span> and 851 </span><span>student tickets sold</span>
One-half of a number plus six will equal 20.
Solving:
1/2x + 6 = 20
-6 -6
1/2x = 14
*2/1 *2/1
x = 28 <--Answer to problem
Answer:
A. 53
Step-by-step explanation
You use tangent to find the angle measure of MAD.
Tan (x) = 16/12
x = 53 degrees
The exponential equation (in thousands) is:
![V = 28 e^{-rt}](https://tex.z-dn.net/?f=V%20%3D%2028%20e%5E%7B-rt%7D)
plug in t=3 yrs, and solve for 'r'.
![14 = 28 e^{-3r} \\ \\ \frac{1}{2} = e^{-3r} \\ \\ ln(\frac{1}{2}) = -3r \\ \\ r = \frac{ln(\frac{1}{2})}{-3} = 0.231 = 23.1%](https://tex.z-dn.net/?f=14%20%3D%2028%20e%5E%7B-3r%7D%20%5C%5C%20%20%5C%5C%20%5Cfrac%7B1%7D%7B2%7D%20%3D%20e%5E%7B-3r%7D%20%20%5C%5C%20%20%5C%5C%20ln%28%5Cfrac%7B1%7D%7B2%7D%29%20%3D%20-3r%20%5C%5C%20%20%5C%5C%20r%20%3D%20%5Cfrac%7Bln%28%5Cfrac%7B1%7D%7B2%7D%29%7D%7B-3%7D%20%3D%200.231%20%3D%2023.1%25)
Find value of car when t = 10