From the surface, it takes a whale

Question

8
minutes to dive to a depth of
2,640
feet below sea level. The whale travels the same distance each minute.

How does the depth of the whale change each minute?

Which choice shows the correct quotient and answer?

Responses

(
−
2,640
)
÷
8
=
330
;
The whale rises
330
feet each minute.
(
−
2,640
)
÷
8
=
330
;
The whale rises 330 feet each minute.

(
−
2,640
÷
8
)
=
−
320
;
The whale travels down
320
feet each minute.
(
−
2,640
÷
8
)
=
−
320
;
The whale travels down 320 feet each minute.

(
−
2,640
)
÷
8
=
−
330
;
The whale travels down
330
feet each minute.
(
−
2,640
)
÷
8
=
−
330
;
The whale travels down 330 feet each minute.

(
−
2,640
÷
8
)
=
320
;
The whale rises
320
feet each minute.

Answer 1

To find out how deep the whale dives each minute, we start with the total depth the whale reaches, which is -2,640 feet (below sea level), and divide that by the total time it takes, which is 8 minutes.

The calculation is as follows:

\[ \frac{-2,640 \text{ feet}}{8 \text{ minutes}} = -330 \text{ feet per minute} \]

This means that the whale dives down 330 feet each minute.

Among the provided responses, the correct choice is:

\[ (-2,640) \div 8 = -330; \text{ The whale travels down } 330 \text{ feet each minute.} \]