A quality control worker checked that 3 out of 40 TVs are defective(do not work). If the worker is to check 8000 TVs, about how many defective TVs can the worker
expect?

Step-by-step explanation:

3 : 40 = x : 8000

3/x = 40/8000

40 × x = 3 × 8000

40x = 24000

x = 24000/40

x = 600

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

98%

step-by-step explanation: