SOLUTION: A 100% concentrate is to be mixed with a mixture having a concentration of 35% to obtain 60 gallons of a mixture with a concentration of 70%. How much of the 100% concentrate will

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Question 840448: A 100% concentrate is to be mixed with a mixture having a concentration of 35% to obtain 60 gallons of a mixture with a concentration of 70%. How much of the 100% concentrate will be needed?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
v = how much 100% concentrate

%2835%2A60%2B100v%29%2F%28v%2B60%29=70
Find v.

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