The Percent Proportion is defined by. amount. ... The base, denoted by the letter b, is the entire quantity or total involved. Note: The number that is the base usually appears after the word of. The amount, denoted by the letter a, is the part being compared to the whole or total.
Answer:
Alternate Exterior Angles Theorem
Step-by-step explanation:
By looking, we can see that they are exterior angles. Because 2 parallel lines are cut by a transversal, the angles are congruent.
Let <em>f(x)</em> be the sum of the geometric series,
![f(x)=\displaystyle\frac1{1-x} = \sum_{n=0}^\infty x^n](https://tex.z-dn.net/?f=f%28x%29%3D%5Cdisplaystyle%5Cfrac1%7B1-x%7D%20%3D%20%5Csum_%7Bn%3D0%7D%5E%5Cinfty%20x%5En)
for |<em>x</em>| < 1. Then taking the derivative gives the desired sum,
![f'(x)=\displaystyle\boxed{\dfrac1{(1-x)^2}} = \sum_{n=0}^\infty nx^{n-1} = \sum_{n=1}^\infty nx^{n-1}](https://tex.z-dn.net/?f=f%27%28x%29%3D%5Cdisplaystyle%5Cboxed%7B%5Cdfrac1%7B%281-x%29%5E2%7D%7D%20%3D%20%5Csum_%7Bn%3D0%7D%5E%5Cinfty%20nx%5E%7Bn-1%7D%20%3D%20%5Csum_%7Bn%3D1%7D%5E%5Cinfty%20nx%5E%7Bn-1%7D)
291-186=105 (total earned through wages)
105/5=21
Therefore she worked 21 hours