SOLUTION: a vendor bought 10 liters of milk at $10 and 20 liters of milk at $30. in what proportion should i mix water and the total 30 liters of milk to sell each liter of milk at $1 per li

Question 931542: a vendor bought 10 liters of milk at $10 and 20 liters of milk at $30. in what proportion should i mix water and the total 30 liters of milk to sell each liter of milk at $1 per liter?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
No indication if this problem is about profit or revenue or price. The concentration could be in DOLLARS PER LITER. You can solve this as a simple two-part mixture problem.

Let x for how much water, 0 dollars per gallon

dollars per liter, the original mixture. There are 30 liters of this original mix.

HOW MUCH WATER to make mixture concentration of 1$ per liter?
.
MOST important is to understand this equation and the one which lead up to it. Once understood, roll this the rest of the way yourself.
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