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1. if the marginal cost of seating a theatergoer is $5 an the elasticity of dema

ID: 2505791 • Letter: 1

Question

1. if the marginal cost of seating a theatergoer is $5 an the elasticity of demand is -3, the profit maximizing price is?

2. A firm determined that its total cost of production is TC=200 +10Q +5Q2. At 10 units of output, the firm's marginal cost is?

3. If output is produced according to Q=4LK, where L is the quantity of labor input and K is the quantity of capital input, the price of K is $10, and the price of L is $5, then the cost minimizing combination of K and L capable of producing 32 units of output is?

Explanation / Answer

1)=> p(1-(1/-3)) = 5


=> P = 15/4 = $3.25


2)MC =10+10Q = 10+10*10 =110


3) => 10 = 4L


=> L=2.5 and for Q=32



=> 32 =2.5*4*K


=> K=3.2


so optimum, K=3.2, L=2.5