question archive In a local hardware store, the price of the store brand indoor house paint is $18 per gallon

In a local hardware store, the price of the store brand indoor house paint is $18 per gallon

Subject:EconomicsPrice:2.88 Bought3

In a local hardware store, the price of the store brand indoor house paint is $18 per gallon. The daily volume of sales is 30 gallons. The price elasticity of demand for the paint is -3.

Determine the demand equation for the paint assuming that it is linear.

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Price elasticity for demand is given by

Ep= dP%/dQ%

Where

Ep = elasticity = -3

dP% = % change in price = (P - 18)/18

dQ= % change in quantity = (Q- 30)/30

Therefore we have

((P-18)/18)/((Q-30)/30) = -3

(P-18)/18 =-3* (Q-30)/30

P-18 = -18 * (Q-30)/10

P-18 = -1.8Q +54

P = 54+18 -1.8Q

P= 72 - 1.8Q

This is the demand equation.