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If y varies inversely as x and y=2 when x=8, find x when y=14
Answers: 2
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Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.
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Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.
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Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.
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If y varies inversely as x and y=2 when x=8, find x when y=14...
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