SOLUTION: An air sample 4.0 ppm (parts per million) of two pollutants. The concentration of one is four times the other. What are the concentrations?

Algebra ->  Equations -> SOLUTION: An air sample 4.0 ppm (parts per million) of two pollutants. The concentration of one is four times the other. What are the concentrations?      Log On


   



Question 159563: An air sample 4.0 ppm (parts per million) of two pollutants. The concentration of one is four times the other. What are the concentrations?
Answer by KnightOwlTutor(293) About Me  (Show Source):
You can put this solution on YOUR website!
X= concentration of pollutant #1
Y=concentration of pollutant #2=4X
X+Y=4.0
X+4X=4.0
5X=4.0
X=.8
Concentration of pollutant #1=0.8 ppm
Concentration of pollutant #2=3.2 ppm
Plug into the original equation
0.8+3.2=4.0 PPM