A chef is going to use a mixture of two brands of Italian dressing. The first brand contains

Question

6%
vinegar, and the second brand contains
11%
vinegar. The chef wants to make
250
milliliters of a dressing that is
9%
vinegar. How much of each brand should she use?

Answer 1

add up the vinegar in each part:

.06x + .11(250-x) = .09(250)

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