How many solutions will this system of equations have? x - 2y = 24 3x - 6y = 72
a. no solution
b. infinite solutions
c. one solution
d. two solutions

The answer is B.

Solve your system of equations.

−2y=24;3x−6y=72

Solve −2y=24 for y:

−2y/−2 = 24/−2(Divide both sides by -2)

y=−12

Substitute (−12) for y in 3x−6y=72:

3x−6y=72

3x+(−6)(−12)=72

3x+72=72(Simplify both sides of the equation)

3x+72+−72=72+−72(Add -72 to both sides)

3x=0

3x/3 = 0/3(Divide both sides by 3)

x=0

Answer B)

She will need 5/8 bags for each square yard.