Question 1140170
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If I know that the solution I use to clean my car windows is 65% water and 35% cleaner, I have one relationship. If I also know that I only have a 3-liter spray bottle that gives me a second relationship.
What do the unknowns in this system represent and what are the two equations that that need to be solved?
Finally, solve the system of equations. 
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w, volume of water
c, volume of undiluted cleaner


Inference is that you want w of water and c of undiluted cleaner to be a total of 3 liters which will be mixed and put into the spray bottle.


{{{system(c=0.35*3,w+c=3)}}}
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{{{w=0.65*3}}}