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.Com
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)   (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
RELATED QUESTIONS

One-hour carbon monoxide concentrations in air samples from a large city have an... (answered by jrfrunner)
Three harmful pollutants were measured by a consumer group in the city. The total sample... (answered by edjones)
Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety... (answered by stanbon)
An environmental group estimates that the amount of pollution in a pond will decrease by... (answered by nerdybill)
An environmental group estimates that the amount of pollution in a pond will decrease by... (answered by nerdybill)
An environmental group estimates that the amount of pollution in a pond will decrease by... (answered by checkley77)
Central limit theorem: Sample mean Polychlorinated biphenyl (PCB) is among a group of... (answered by stanbon)
Central limit theorem: Sample mean Polychlorinated biphenyl (PCB) is among a group of (answered by stanbon)
can someone please help me solve this? thanks Polychlorinated biphenyl (PCB) is among... (answered by stanbon)