X+ y = 12
x - y = 10
what is the value of the x-determinant for the system shown?
a)-22
b)-12
c)-2

Option C is correct

value of the x-determinant for the system is, -2

Step-by-step explanation:

Given the system of equation:

x + y =12

x -y =10

Represents the system of equations in matrix format:

Now, to find the determinant of a matrix.

Formula for the determinant of matrix:

then;

The value of the x-determinant:

Using determinant(D) formula:

Therefore, the value of the x-determinant for the system is, -2

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

he will have 300 because he is really broke and 300 is in his imangine

step-by-step explanation: he ehe heh step by the thy