O oposto de 2 é 1/2
o oposto de 8 é 1/8
chamando o oposto de 25 de x
x = 1/25
0.45
90/2=45% chance they will go 110/2=55% chance they won't go
Since
, by the remainder theorem this means that <em>x</em> - 6 divides <em>f(x)</em> exactly. This means there are constants <em>a</em>, <em>b</em>, and <em>c</em> such that

Multiplying both sides by <em>x</em> - 6 gives

Then <em>a</em>, <em>b</em>, <em>c</em> satisfy

and solving this system gives <em>a</em> = 2, <em>b</em> = -7, and <em>c</em> = 3.
So, we have

The quadratic term can be factored as

which leaves us with

so that the zeros of <em>f(x)</em> are 6, 1/2, and 3.
The system of equations would be:
64x+132y = 1040
x = 2y
We multiply the number of adult tickets, 64, by the cost of the adult tickets, x. We multiply the number of student tickets, 132, by the cost of the student tickets, y. Together these add up to $1040.
We know that the cost of an adult ticket is twice as much as a student ticket, so x = 2y.