A. 2(x+14) = 42
(2x = 14
x = 7
2(7) + 2(14) = 14 + 28 = 42)
Answer:
2(3x)+2(2x+22)+x+41=360°
Step-by-step explanation:
Sum of exterior angles of any polygon is 360°.
So if we add up all five exterior angles of the pentagon, we have
Probability of choosing a black fly = 30/100 = 0.3
Probability of choosing a grey fly = 70/100 = 0.7
So, probability of choosing 2 grey flies = 0.7*0.7 = 0.49
