The Only Variable Input a Janitorial Services Firm Uses to Clean

question 71

Essay

The only variable input a janitorial services firm uses to clean offices is workers who are paid a wage, w, of $8 an hour. Each worker can clean four offices in an hour. Use math to determine the variable cost, the average variable cost, and the marginal cost of cleaning one more office. Draw a diagram to show the variable cost, average variable cost, and marginal cost curves.

---

Definitions:

Distal Convoluted Tubule

A twisted tubular segment of the nephron in the kidney that functions in the reabsorption of water, sodium, and chloride and the secretion of potassium and hydrogen ions.

Filtrate Volume

The total volume of fluid that has passed through a filter, such as the kidney's glomerular filter, during the process of filtration, which is an initial step in urine formation.

Water Reabsorption

The process by which water is taken back into the body from the filtrate (such as in the kidneys) during excretion, crucial for maintaining fluid balance.

Renal Tubules

A series of tubes in the kidney where urine is formed and processed, part of the nephron, the basic functional unit of the kidney.