Answer:
![a=2b-x](https://tex.z-dn.net/?f=a%3D2b-x)
Step-by-step explanation:
Solve the given equation for the variable a
we have
![2(x+a)=4b](https://tex.z-dn.net/?f=2%28x%2Ba%29%3D4b)
Solve for a
That means ----> isolate the variable a
The specific process followed in the resolution of a is
step 1
Divide by 2 both sides
![\frac{2(x+a)}{2}=\frac{4b}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2%28x%2Ba%29%7D%7B2%7D%3D%5Cfrac%7B4b%7D%7B2%7D)
Simplify
![x+a=2b](https://tex.z-dn.net/?f=x%2Ba%3D2b)
step 2
subtract x both sides
![x+a-x=2b-x](https://tex.z-dn.net/?f=x%2Ba-x%3D2b-x)
simplify
![a=2b-x](https://tex.z-dn.net/?f=a%3D2b-x)
Angles JKH and IHK are alternate interior angles
Answer:
$20 is the dependent quantity and 30-100 cars is the independent quantity. Domain is all real positive numbers and range is all real positive numbers
To find how far she walked on Tuesday, you need to multiply (4/5)*(1/2).
![\frac{4}{5} * \frac{1}{2} = \frac{4*1}{5*2} = \frac{4}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%7D%20%2A%20%20%5Cfrac%7B1%7D%7B2%7D%20%3D%20%20%5Cfrac%7B4%2A1%7D%7B5%2A2%7D%20%3D%20%5Cfrac%7B4%7D%7B10%7D%20)
miles. This can be simplified to
![\frac{2}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B5%7D%20)
mile.
Each page from 10 to 99, inclusive (so total of 90 pages) needs two digits (for example page 12 needs two digits: 1 and 2); Each page from 100 to 200, inclusive (so total of 101 pages) needs three digits (for example page 123 needs three digits: 1, 2 and 3)