Compute the price elasticity of demand at P1 and P2.

Principles of Economics 2e
2nd Edition
ISBN:9781947172364
Author:Steven A. Greenlaw; David Shapiro
Publisher:Steven A. Greenlaw; David Shapiro
Chapter6: Consumer Choices
Section: Chapter Questions
Problem 17P: If a 10 decrease in the price of one product that you buy causes an 8 increase in quantity demanded...
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I just need help with letter d please

Given a QD = 100 – 2P and QS = 6P – 20

a. Compute the equilibrium price, P*, and equilibrium quantity, Q*.

b. If P1 = 10, compute the QD , and QS. Identify the economic effect at this price.

c. If P2 =  30, compute the QD , and QS. Identify the economic effect at this price.

d. Compute the price elasticity of demand at P1 and P2.

e. Compute the total revenue at P*.

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