SOLUTION: a 40% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 150 gallons of a 60% solution. How many gallons of the 40% solution and 70% solution s

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Question 881978: a 40% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 150 gallons of a 60% solution. How many gallons of the 40% solution and 70% solution should be mixed?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
%2840u%2B70v%29%2F150=60 and u%2Bv=150;
u, gallons of the 40%;
v, gallons of the 70%.

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