40- 1-40 , 2-20, 4-10,5-8
55- 1-55, 5,11
factors are numbers times each other put together to get the number
Answer:
Another name for the 90 degree angles is Right Angles.
Let X be birds = ?
Y be beasts = ?
heads = 60
feet = 200
feet of birds = 2
feet of beast = 4
From data we come to know that
total animals = X+Y=60____1
total feet = 200 = 2X + 4Y_____2
from equation 1 X= 60-Y
put this value of X in equation 2
2(60-Y) + 4Y = 200
120 - 2Y + 4Y = 200
2Y= 200 - 120
2Y = 80
Y = 40
Now from value of Y we can calculate X
X + Y =60
X + 40 = 60
Or X = 20
The number of beasts is equal to 40 where as number of birds is equal to 20.
Answer: B
Step-by-step explanation:
The Black Plague or Black Death was spread from Asia to Europe through trading barges or ships. Since a lot of people in Asia contracted the plague, it was natural the rats on the ship also carried the disease. Where the ships landed, rats or their fleas hiding on humans would come with the travelers. While European countries were fighting wars during the plague, it mostly halted because of the sharply increasing deaths from the disease. Religion was used more for trying to cure the Black Death, and ironically there was more food and land for the survivors since there were less mouths to feed.