During the first month of school, students recorded each day on which they had a quiz in math class. A student stated that there is a math quiz every Tuesday morning. Is the
student's statement a conjecture or a theorem?*
conjecture
theorem
O both a conjecture and a theorem
O neither a conjecture or a theorem

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

answer: 1.5

step-by-step explana