13. Lisa is decorating her office with two fully stocked aquariums. She saw an advertisement for Jorge's pet store in the newspaper. Jorge's store sells fish for aquariums. The table shows the fish Lisa buys from Jorge's pet store. Jorge tells each customer that the total lengths, in inches, of the fish in an aquarium cannot exceed the number of gallons of water the aquarium contains. What is the mean price of all the fish Lisa buys for her aquarium?
Answer: C
The mean price of all the fish Lisa buys for her aquarium is $3.39.
To find the mean price of the fish Lisa buys, the total cost of all the fish must be divided by the total number of fish purchased. In this case, the calculations result in a mean price of $3.39.
A) $2.99
This option is incorrect because the mean price calculated from the total cost and number of fish does not yield this value. It suggests that the total expenditure was lower than the actual figures provided.
B) $6.45
This option is also incorrect. A mean price of $6.45 implies that the average cost per fish is significantly higher than what was calculated based on the total price and quantity of fish Lisa purchased.
C) $3.39
This option is correct as it accurately represents the mean price of the fish based on the total cost divided by the number of fish. The calculations confirm that this figure is the average price per fish.
D) $5.14
This option is incorrect because it implies a mean price that is higher than the calculated average. Such a value does not reflect the actual financial details of the purchases made by Lisa.
Conclusion
The correct mean price of $3.39 reflects the accurate average cost per fish based on the total expenditure and quantity. Options A, B, and D do not align with the calculations derived from the data provided, confirming that they are not valid responses to the question.