The demand for watermelon is represented as Qd= 10 −0.5P . (a) What is the price elasticity of demand when price is $16? (b) At $16 is watermelon elastic, inelastic, or unit elastic?

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The demand for watermelon is represented as Qd= 10 −0.5P .
(a) What is the price elasticity of demand when price is $16?
(b) At $16 is watermelon elastic, inelastic, or unit elastic?

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"Price elasticity of demand measures how much quantity demanded of a product changes when price of that particular product changes. Price elasticity of demand can be computed using the formula: dQddP×PQd     where Qd represents quantity demanded of a good and P represents price of that good."

 

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For Part A, could you format it in a different way thats easier to read. I can't follow what the equation process is here. Thanks

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