A machine shop purchases electricity at the following rates: First 100 kWh at 10.0 cents per kWh. Next 200 kWh at 12.2 cents per kWh. Next 300 kWh at 14.1 cents per kWh. Over 600 kWh at 18.1 cents per kWh. Be accurate to at least two decimal places for all the following problems. Don't write your units in the answer box. (a) (3 pts.) The shop uses 550 kWh/month. (a. 1) What is the total cost per month ($/month)? (a 2) Average cost (cents/kWh) (a.3) Marginal cost (cents/kWh) (b) (3 pts.) A new machine is installed that will increase total power consumption to 875kWh/month. (b. 1) What is the total cost per month ($/month)? (b.2) Average cost (cents/kWh) (b.3) Marginal cost (cents/kWh)

A machine shop purchases electricity at the following rates First 100kWh at 10.0 cents per kWh Next 200kWh at 12.2 cents per kWh. Next 300kWh at 14.1 cents per kWh. Over 600kWh at 18.1 cents per kWh Be accurate to at least two decimal places for all the following problems. Don't write your units in the answer box (a) (3 pts.) The shop uses 550kWh/month. (a. 1) What is the total cost per month (\$/month)? (a 2) Average cost (cents/kWh) (a. 3) Marginal cost (cents/kWh) (b) (3 pts.) A new machine is installed that will increase total power consumption to 875kWh/month (b. 1) What is the total cost per month (\$/month)? (b. 2) Average cost (cents/kWh) (b. 3) Marginal cost (cents/kWh)