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The weekly sales of Honolulu Red Oranges is given by -912-20p. where q is the nu

ID: 2889446 • Letter: T

Question

The weekly sales of Honolulu Red Oranges is given by -912-20p. where q is the number of oranges sold at the price p dollars per orange. Find E(P) E(p) = Calculate the price elasticity of demand when the price is $38 per orange (yes, $38 per oranget). HINT [see Example 1.] Interpret your answer The demand is going downby 96 per 1% increase in price at that price level Use the elasticity to calculate the price that gives a maximum weekly revenue. X dollars per orange Find this maximum revenue dollars of revenue

Explanation / Answer

given q= 912-20p

dq/dp = 0 -20*1

=>dq/dp = -20

E(p)=(dq/dp)(p/q)

=>E(p)=(-20)(p/(912-20p))

=>E(p)=-(20p/(912-20p))

when p=38

E(38)=-(20*38/(912-20*38))

E(38)=-5

price elasticity of demand when price is $ 38 per orange is - 5

if abosolute value is needed, then use 5

the demand is going down by 5% per 1% increase in price at that price level

E(p)=-(20p/(912-20p))

for maximum revenue |E(p)| =1

=>(20p/(912-20p)) =1

=>20p =912 -20p

=>40p=912

=>p=912/40

=>p=22.8

22.8 dollars per orange

maximum revenue = 22.8*( 912-20*22.8)

maximum revenue = 10396.8

10396.8 dollars of revenue

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