SOLUTION: A regression analysis between the volume of a type of drug produced and the weight of a particular ingredient used in a pharmaceutical process shows that y = -100 + 0.3x, where x =

Algebra ->  Probability-and-statistics -> SOLUTION: A regression analysis between the volume of a type of drug produced and the weight of a particular ingredient used in a pharmaceutical process shows that y = -100 + 0.3x, where x =      Log On


   

Question 926816: A regression analysis between the volume of a type of drug produced and the weight of a particular ingredient used in a pharmaceutical process shows that y = -100 + 0.3x, where x = kilograms of ingredient and y = litres of drug. How much ingredient would be used to produce 100 litres of the drug?
Found 2 solutions by ewatrrr, Theo:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
y = -100 + 0.3x
where x = kilograms of ingredient and y = litres of drug
y = 100L
100 = -100 + .3x
200/.3 = x = 666 2/3 kg

Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
y equals -100 + .3x
x = kilograms of ingredients.
y = liters of drug.
how much ingredient would be used to produce 100 liters of the drug?
replace y with 100 and solve for x.
y = -100 + .3x becomes:
100 = -100 + .3x
add 100 to both sides of the equation to get:
200 = .3x
divide both sides of the equation by .3 to get:
666.6666666...7 kilograms of ingredients.
this can be translated to 666 and 2/3 kilograms of ingredients.