Question

Marilyn​, a medical ​student, buys two cups of coffee a​ day, which costs her ​$5.00. She decides to buy one more cup each day and her expenditure on coffee increases to ​$7.50. The marginal cost to Marilyn of a cup of coffee is​ _______.

Answer 1

The marginal cost to Marilyn of a cup of coffee is $2.50

Step-by-step explanation:

Marginal cost = change in cost/change in quantity = $7.50 - $5.00/3 - 2 = $2.50/1 = $2.50