Start by writing the system down, I will use
to represent 

Substitute the fact that
into the first equation to get,

Simplify into a quadratic form (
),

Now you can use Vieta's rule which states that any quadratic equation can be written in the following form,

which then must factor into

And the solutions will be
.
Clearly for small coefficients like ours
, this is very easy to figure out. To get 5 and 6 we simply say that
.
This fits the definition as
and
.
So as mentioned, solutions will equal to
but these are just x-values in the solution pairs of a form
.
To get y-values we must substitute 3 for x in the original equation and then also 2 for x in the original equation. Luckily we already know that substituting either of the two numbers yields a zero.
So the solution pairs are
and
.
Hope this helps :)
Answer:
I think it would be group B due to the fact that they are the closest to 25 g
Step-by-step explanation:
Answer:
second is 1.50 first is 11.15
Step-by-step explanation:
see if it works for you I changed my fractions into decimals
<span> </span> <span>if you want to determine the perimeter / length, use a normal measure - ft.
The area is

<span>and the volume</span></span>