Gloria's pontoon boat holds 24 gallons of gas. Before they went out on the lake, Gloria decided
to fill the tank by adding 13 1/2 gallons of gas.
How many gallons of gas were in the tank before
Gloria filled it?

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0

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

your answer is b.

x = 33.9

y = 65.6

step-by-step explanation: