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Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 5p + 3x + 3px

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Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 5p + 3x + 3px = 114. Suppose also that p and x are both functions of time, measured in days. Find the rate at which x is dp changing when x = 4, p =6, and = 1.1 dt The rate at which x is changing is sale(s) per day. (Round to the nearest hundredth as needed.)

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