SOLUTION: Thank you so much for helping me Allegation math problem: Word problem A pharmacist has a 70% alcoholic elixir and a 20% alcoholic. elixir. He needs a 30% alcoholic elixir to

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Question 815055: Thank you so much for helping me
Allegation math problem: Word problem
A pharmacist has a 70% alcoholic elixir and a 20% alcoholic. elixir. He needs a 30% alcoholic elixir to use as a vehicle

Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
v for how much of 70%
u for how much of 20%

%2820%2Au%2B70v%29%2F1=30 and u%2Bv=1

Why did I choose the second equation and equal to 1?
Why did I pick a denominator for the first equation of 1?
Solve the system for u and v.