QUESTION TWO
A health store carries two kinds of vitamin water, brand A and brand B. Sales figures indicate that if brand A is sold for x dollars per bottle and brand B for y dollars per bottle, the demand for brand A will be
Q(x,y) = 300 – 20x2 + 30y bottles per month
It is estimated that t months from now the price of brand A will be
x = 2 + 0.05t dollars per bottle
and the price of brand B will be
y = 2 + 0.1√t dollars per bottle
At what rate will the demand for brand A be changing with respect to time 4 months from now?
Mathbot Says...
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