Answer:
3800
Step-by-step explanation:
Variables:
O - Original cost
N - New cost
c - change factor
Step 1:
Recognize that if something decreases by 19%, it is worth 19% <em>less</em>
This means that the new price, fractionally, is 100% - 19% = 81%
So we can use c as 0.81 (81/100)
Step 2:
Write an equation to represent what is happening
N = O * c
Step 3:
Sub in what we know
3078 = O * 0.81
Step 4:
Rearange and solve
O = 3078 / 0.81 = 3800
Answer:
y=-2/5x+5
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
:)
Answer:
![m\angle FGC =101\degree](https://tex.z-dn.net/?f=m%5Cangle%20FGC%20%3D101%5Cdegree%20)
Step-by-step explanation:
(Given)
(Given)
(Corresponding angles)
![\implies m\angle IFG = 46\degree](https://tex.z-dn.net/?f=%5Cimplies%20m%5Cangle%20IFG%20%3D%2046%5Cdegree)
![m\angle FGC =m\angle IFG+ m\angle FIG](https://tex.z-dn.net/?f=m%5Cangle%20FGC%20%3Dm%5Cangle%20IFG%2B%20m%5Cangle%20FIG)
(By exterior angle theorem)
![m\angle FGC =46\degree+ 55\degree](https://tex.z-dn.net/?f=m%5Cangle%20FGC%20%3D46%5Cdegree%2B%2055%5Cdegree%20)
![m\angle FGC =101\degree](https://tex.z-dn.net/?f=m%5Cangle%20FGC%20%3D101%5Cdegree)