In a shipment of 400 total parts, 14 parts are found to be defective. Write a sentence that describes the rate of defective parts a- every 200 parts ,7 are defective
b- a box of 7 parts ,200 hundred parts are defective
c- approximately 57.14 parts, 1 part is defective
d- 28.57, 1 part is defective

I want to say it is A

Step-by-step explanation:

I am not sure though and I am very sorry if you get it wrong

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