Hey,I don’t think this is the whole question
Answer:
x+y=8
Step-by-step explanation:
2(3x+y=20)
6x+2y=40
2x-2y=8
8x=48
x=6
18+y=20
y=2
Radian to degree conversion.
4(pi)/3 degrees= 4(pi)/3 × 180/pi radians
As pi radians= 180 degrees
Dividing both sides by pi :
pi / pi radian= 180/pi degrees
1 radian=180/pi degrees
4 × pi /3 × 180/ pi
pi and pi gets cancelled.
180/3= 60
4× 60
=240 degrees
Answer is option C.