We'll whip that answer right out for you ... as soon as you tell us the cost of a line of bowling, the cost to rent shoes, and the cost of an order of nachos.
Answer:
Demography
Step-by-step explanation:
Demography is a social science concerned with the study of the human poplulation, its structure, and relationship with the environment all of which are stated in the question.
Let
x---------------> number of men in <span> the theater
</span>y---------------> number of women in the theater
z---------------> number of children in the theater
T--------------> total number of persons in the theater
we know that
T=x+y+z
x=(1/4)*T
y=(5/8)*T----------> equation 1
z=T-[(1/4)*T+(5/8)*T]-----> z=T-(7/8)*T------> z=(8*T-7*T)/8------> z=(1/8)*T
z=(1/8)*T----------> equation 2
y=100+z--------> equation 3
<span>I substitute (1) and (2) in (3)
</span>(5/8)*T=100+(1/8)*T------> (5/8)*T-(1/8)*T=100--------> T=200 persons
the total number of people in the theater was 200 persons
number of men in the theater------> 200*(1/4)=50 men
number of women in the theater----> 200*(5/8)=125 women
number of children in the theater----> 200*(1/8)=25 children
12 pies can be made with 28 cups of flour. 3 pies for 7 cups.