SOLUTION: Please help me solve this: x liters of a 5% salt solution are added to 10 liters of a 2% salt solution., Find th eend concentration as a function of x How much solution do you

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Question 692975: Please help me solve this:
x liters of a 5% salt solution are added to 10 liters of a 2% salt solution., Find th eend concentration as a function of x How much solution do you end up with? How much salt does it contain?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
x liters of a 5% salt solution are added to 10 liters of a 2% salt solution.,
Find the end concentration as a function of x
How much solution do you end up with?
You end up with (x+10) liters
:
How much salt does it contain?
let y = the final concentration of salt, in decimal form
.05x + .02(10) = y(x+10)
.05x + .2 = y(x+10)
%28%28.05x+%2B+.2%29%29%2F%28%28x%2B10%29%29 = y
Change to per cent
100*%28%28.05x+%2B+.2%29%29%2F%28%28x%2B10%29%29 = %28%285x+%2B+20%29%29%2F%28%28x%2B10%29%29 % is the final concentration of salt