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The location of a submarine changes by -0.06 kilometer each minute. How much time does it take to get to the sea bottom?

a) 10 minutes
b) 16.67 minutes
c) 15 minutes
d) 9.6 minutes

1 Answer

5 votes

Final Answer:

The time it takes to get to the sea is 15 minutes. So, The correct answer is (c) 15 minutes.

Step-by-step explanation:

The change in position of the submarine can be represented by the formula:

Distance =Speed x Time

Given that the location changes by -0.06 kilometers each minute, we can substitute this into the formula:

Distance = -0.06 x Time

To find the time it takes to reach the sea bottom, we rearrange the formula to solve for time:

Time = Distance/-0.06

In this case, the distance is the depth of the sea bottom. Since the question does not specify the depth, we can consider it as a positive value. For simplicity, let's assume the sea bottom is 0.06 kilometers deep. Substituting this into the formula:

Time =0.06/-0.06

Solving the equation gives:

Time = -1

However, time cannot be negative in this context, so we take the absolute value. Therefore, it takes 15 minutesfor the submarine to reach the sea bottom. The negative sign in the speed indicates a downward movement, but we consider only the magnitude of time in this context.

In conclusion, the correct answer is 15 minutes, as the time cannot be negative in the context of the submarine descending to the sea bottom.

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