Answer:
The answer is B. n+3=7
Step-by-step explanation:
^^^^^^^
Answer:
x = 8 and y = 10
Step-by-step explanation:
Since the figures are congruent:
Angle PQR = EFG
6y + x = 68
Segment QR = FG
2x - 4 = 12
Solving that:
2x - 4 = 12
2x = 16
x = 8
Replacing x in 6y + x =68
6y + 8 = 68
6y = 60
y = 10
![4x - y = - 5 \\ - 2x + y = 3](https://tex.z-dn.net/?f=4x%20%20-%20y%20%3D%20%20-%205%20%5C%5C%20%20-%202x%20%2B%20y%20%3D%203)
Solve the second equation for y
![4x - y = - 5 \\ y = 3 + 2x](https://tex.z-dn.net/?f=4x%20-%20y%20%3D%20%20-%205%20%5C%5C%20y%20%3D%203%20%2B%202x)
Substitute the given value of y into the first equation
![4x - (3 + 2x) = - 5](https://tex.z-dn.net/?f=4x%20-%20%283%20%2B%202x%29%20%3D%20%20-%205)
Solve the equation for x
![x = - 1](https://tex.z-dn.net/?f=x%20%3D%20%20-%201)
Substitute the given value of x into the second equation
![y = 3 + 2( - 1)](https://tex.z-dn.net/?f=y%20%3D%203%20%2B%202%28%20-%201%29)
Solve the equation for y
![y = 1](https://tex.z-dn.net/?f=y%20%3D%201)
The possible solution of the system is the ordered pair (x,y)
![(x,y) = ( - 1, 1)](https://tex.z-dn.net/?f=%20%28x%2Cy%29%20%3D%20%28%20-%201%2C%201%29)
31.25 meters 3.75<span> / </span>3<span> = 1.</span>25<span>,</span>