Agroup of 266 persons consists of men, women, and
children. there are four times as many men as children,
and twice as many women as children. how many of
each are there?

Number of children=38

Number of men=152

Number of women =72

Step-by-step explanation:

please give me brainliest

Let the number of children =x

Number of men =4x

Number of women =2x

There are 266 people all together.

x+4x+2x=266

7x=266

x=38

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0