4% of its pills are defective. how many pills do they have to make to deliver 5,000 pills?

5,209

Step-by-step explanation:

If 4% are defective, you need 5,000 to equal 96% of pills produced (100%-4%). Knowing this, we can do 5,000/96 to get 1%, which is ~52. ~52*4= 208.333. We can round this up to 209 to safely say they need to make 5,209 pills do deliver 5,000 effective pills.

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