SOLUTION: A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 7% vinegar, and the second brand contains 12% vinegar. The chef wants to make 350 milli

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Question 1179767: A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 7% vinegar, and the second brand contains 12% vinegar. The chef wants to make 350 milliliters of a dressing that is 8% vinegar. How much of each brand should she use?
Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
L=7
H=12
T=8
M=350
v of the H conc.
M-v of the L conc.

Hv%2BL%28M-v%29=MT
-
Hv%2BML-Lv=MT
%28H-L%29v%2BML=MT
%28H-L%29v=MT-ML
highlight_green%28v=M%28%28T-L%29%2F%28H-L%29%29%29

Substitute the given values....