Answer:
79
Step-by-step explanation:
The sum of the three interior angles in a triangle is always 180°
180-73-28 = 79
Answer:
total number of students = 41
Step-by-step explanation:
A different class is made up of 66% women and has 27 women in it.
Let x be the total number of students in the class
66% of students are women
66% of women are 27 women
66 % of x is 27
![\frac{66}{100} x= 27\\\\66x=2700\\](https://tex.z-dn.net/?f=%5Cfrac%7B66%7D%7B100%7D%20x%3D%2027%5C%5C%5C%5C66x%3D2700%5C%5C)
divide both sides by 66
x=41
So total number of students = 41
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Answer:
Step-by-step explanation:
lets note a= chickens
b=cows
a+b=46
also = chickens has 2 legs, cow=4 legs
2a+4b=156..........we divide this equation by 2 so we can work with smaller numbers
a+2b=78 or we cam write a=78-2b
lets replace in the first equation a+b=46
78-2b+b=46
-b=46-78
-b=-32 multiply by -1
b=32
so we have 32 cows with 128 legs
a+32=46
a=14 chickens with 28 legs