Determine which system below will produce infinitely many solutions.
a. -6x+3y=18
4x-3y=6
b. 2x+4y=24
6x+12y=36
c. 3x-y=14
-9x+3y=-42
d. 5x+2y=13
-x+4y=-6
i really need

The answer is the option C

Step-by-step explanation:

case A) we have

------> equation A

------> equation B

Adds equation A and equation B

Find the value of y

substitute in the equation A the value of x

therefore

the system case A) has one solution

case B) we have

------> equation A

------> equation B

Multiply by equation A

so

Equation A and equation B are parallel lines

therefore

the system case B) has no solution

case C) we have

------> equation A

------> equation B

Multiply by equation A

------->

Equation A and equation B are the same line

therefore

the system case C) has infinitely solutions

case D) we have

------> equation A

------> equation B

Multiply by equation B

-------> equation C

Adds equation A and equation C

Substitute the value of y in the equation B

the system case D) has one solution

it 2

step-by-step explanation:

8^1/3=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