i need help setting this up.
one solution containing 20 percent alcohol is mixed with another solution containing 60 percent alcohol to make 10 gallons of a solution that is 32 percent alcohol. How much of each solution is used?
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So this is basically what you want to do:
Set it up and find what x equals, which is the amount of the 20 percent solution needed. Once you know that, you can find the 60% solution by subtracting the amount of the 20 percent solution by 10, or the total solution.
I hope this makes sense, do you understand??
yes it makes more sense then my set up. Thanks
What did you get for your answer? (I am studying this too and want to compare)
Not the answer you are looking for? Search for more explanations.
x= 71/5 and y= -21/5
am i correct?
Let's think, does it make sense that one would be negative? I don't think so. So lets work through the equation and do what we can: 3.2=0.2x+6-0.6x
We can combine like terms and we get −2.8=-0.4x, or 2.8+0.4x
We know that 1/5 of x is 1.4, so x=7
x represents the number of gallons used in the 20% solution, so we can subtract 7 from 10 to get the number used in the 60% solution, to get 3.
I hope you understand! Anymore questions?