Question

A three-dimensional model of Arthur’s apartment is shown below.

A rectangular prism is shown. The base of the prism has dimensions of 13 feet by 25 feet. A rectangular prism is cut out of the side of the larger prism. The smaller prism has base dimensions of 5 feet by 11 feet.

Complete the statements to determine the amount of BTUs needed to properly cool Arthur's apartment.

The total volume of the apartment is
ft3.

An hourly rating of 2.5 BTUs per cubic foot is required, so
.

Arthur needs an air conditioner that will provide
BTUs to properly cool his apartment.

Answer 1

2,160

multiply the total volume by 2.5

5,400 BTUs

Explanation:

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Answer 2

The total volume of the apartment is

✔ 2,160

An hourly rating of 2.5 BTUs per cubic foot is required, so

✔ multiply the total volume by 2.5

Arthur needs an air conditioner that will provide

✔ 5,400

BTUs to properly cool his apartment.

Explanation:

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