A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 9% vinegar, and the second brand contains 14% vinegar. The chef wants to make 310 milliliters of a dressing that is 13% vinegar. How much of each brand should she use?
Added by Carol R.
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Let x be the amount of the first brand (9% vinegar) and y be the amount of the second brand (14% vinegar). Show more…
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