It was recently estimated that females outnumber males by about seven to five. If there are 4716 people in a county, how many of them are females?

Brainlest please?

Step-by-step explanation:

This question asks you to setup ratios.  Let's break down the question.

1) females outnumber males by about three to two - How would you write this in math form?  In ratios, this is written as female:male = 3:2.  What this means is that for randomly selected 5 people, the chances are that 3 are females and 2 males.

We can easily convert ratios into fractions by writing the 'part over whole'; that is, 'part/whole'.  In this case, the 'parts' are 3 females and 2 males; the 'whole' is (3+2)=5 people.  So, the fraction of females will be 3/5 and the fraction of males will be 2/5.

2) If there are 1540 people in a county, how many of them are females?

If there are a total of 1540 people, the total number of females will be

(1540 people)(3 females/5 people) = 924 female

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

$12. that is my answer.