Answer:
13x ÷ 760 - 13x
Explanation:
The compuatation is shown below:
Data provided in the question
Price per cookie = X
And, the quantity of cookies sold is
q = D(x) = 760 - 13x
Based on the above information, the price elasticity of demand equal to 1 is
We have to use the derivative
D'x = -13
Now the elasticity is
= x. D'x ÷ D(x)
= {x. (-13)} ÷ {760 - 13x}
= 13x ÷ 760 - 13x