There are three groups of people: 25 years old and younger, between 25 to 50, and 50 years old and older. Their fractions must equal to 1 because these three together form the whole.
1 = 1/3 + 2/7 + x
where x is the fraction for people ages 25 to 50 years old
x = 8/21
So, the actual number of people ages 25 to 50 years old is:
84(8/21) = 32 people
<span>2y/2=5x+1/2
y=5x/2+1/2
no it's not a direct variation because of 1/2</span>
Answer:
It should be 92
Step-by-step explanation:
You can factorize to simplify the expression
The answer would be,

Hope this helped
:D
I think it’s A cus it’s more general info about it that sums up the difference of the chronicle to the other ones i’m not sure tho