Question 1189871
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Let *[tex \Large x] represent the amount of 13% vinegar, so *[tex \Large 370\ -\ x] must be the amount of 8% vinegar.  Then *[tex \Large 0.13x] is the amount of pure vinegar in the 13% vinegar dressing and *[tex \Large 0.08(370\,-\,x)] is the amount of pure vinegar in the 8% dressing.  The sum of these two amounts must equal the amount of pure vinegar in the desired mixture, namely *[tex \Large 0.12(370)\ =\ 44.4].


So solve:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  0.13x\ +\ 0.08(370\,-\,x)\ =\ 44.4]


For *[tex \Large x] and then calculate *[tex \Large 370\,-\,x]

																
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
*[illustration darwinfish.jpg]

From <https://www.algebra.com/cgi-bin/upload-illustration.mpl> 
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