The number of people estimated to vote in an election was 7,000. The actual number of people who voted was 5,600. By what percent did the estimate vary from actual turnout?

%

In the previous election 6,400 people voted. What is the percent decrease in actual voters?

x-3y=4

step-by-step e

x = 12

y = 1

for the points!

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