A frozen yogurt stand makes a profit of P(x) = .40x - 80 dollars when selling x

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A frozen yogurt stand makes a profit of P(x) = .40x - 80 dollars when selling x scoops of yogurt per day. 

(a) Find the breakeven sales level, that is, the level at which P(x) = 0.

(b) What sales level generates a daily profit of $30?

(c) How many more scoops of yogurt will have to be sold to raise the daily profit from $30 to $40?

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Calculus And Its Applications

ISBN: 9780134437774

14th Edition

Authors: Larry Goldstein, David Lay, David Schneider, Nakhle Asmar

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