SOLUTION: A chef is using a mixture of two brands of Italian dressing. The first brand contains vinegar, and the second brand contains vinegar. The chef wants to make milliliters of a d

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Question 789938: A chef is using a mixture of two brands of Italian dressing. The first brand contains vinegar, and the second brand contains vinegar. The chef wants to make milliliters of a dressing that is vinegar. How much of each brand should she use?
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


Let represent the desired quantity of Brand 1 which is percent vinegar.

Let represent the desired quantity of Brand 2 which is percent vinegar.

Let represent the quantity of mixture which is percent vinegar.

Note, the use of variables for , , , and was necessary because you failed to specify these quantities in your problem statement.





Plug in the numbers given in the problem for , , , and , do any indicated arithmetic, and then solve the 2X2 system for and

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