Answer: 0.7
Step-by-step explanation:
Let the number of white cows be x
Thus, the number of brown cows be (x+12)
Hence,
x+(x+12)=60
x+x+12=60
2x+12=60
2x+12-12=60-12
2x=48
Divide both parts of the equation by 2:
x=24 white cows
x+12=36 brown cows
The number of white cows are less than one year old:

The number of brown cows are less than one year old:

The total number of cows are less than one year old:

Thus
Fraction of all the cows are less than one year old:

The answer is C) 20°. This is because 73 + 87 = 160, and there are 180° in a triangle so 180 - 160 = 20. I hope this helps!
Answer:
The height of the taller building is 
Step-by-step explanation:
see the attached figure to better understand the problem
step 1
Find the value of h1
with the angle of elevation
we know that


step 2
Find the value of h2
with the angle of depression
we know that


step 3
Find the height of the taller building
The height of the taller building is the sum of h1 plus h2
so

Answer:
x=-4
Step-by-step explanation:
The two lines are parallel, so the two angles, 45 and x+49 are equal too
Lets make the equation
x+49 = 45
x = 45-49
x = -4
If my answer is incorrect, pls correct me!
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-Chetan K