SOLUTION: How much of a 40% antifreeze solution must a mechanic mix with a 70% antifreeze solution if she needs 25 gallons of a 50% antifreeze solution?

SOLUTION: How much of a 40% antifreeze solution must a mechanic mix with a 70% antifreeze solution if she needs 25 gallons of a 50% antifreeze solution?

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Question 1096641: How much of a 40% antifreeze solution must a mechanic mix with a 70% antifreeze solution if she needs 25 gallons of a 50% antifreeze solution?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
x gallons of the 40%

Just solve for x and evaluate 25-x.
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