How many 1/12 parts are in 9/12?

answer:

9

Step-by-step explanation:

1/12 can be seen as 1 out of 12. Each number is a twelfth (because its one part of the 12 total) so 1/12 is one twelfth. 9/12 is nine of the 12 total. so its nine twelfths.

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

step-by-step explanation: