A submarine is diving at a depth of 500 meters. Every 3 minutes, it descends another 50 meters. It then reaches a depth of 1,000 meters.
How many times did the submarine descend 50 meters?
*
1 point
50 times
40 times
30 times
20 times
10 times
To find the number of times the submarine descended 50 meters, we can divide the difference in depth (1,000 meters - 500 meters = 500 meters) by the descent rate (50 meters).
500 meters / 50 meters = 10 times
Therefore, the submarine descended 50 meters 10 times.
A submarine is diving at a depth of 500 meters. Every 3 minutes, it descends another 50 meters. It then reaches a depth of 1,000 meters.
How long did it take for the submarine to reach the depth of 1,000 meters?
*
2 points
5 minutes
10 minutes
20 minutes
30 minutes
40 minutes
To find the time it took for the submarine to reach a depth of 1,000 meters, we need to divide the total distance traveled (1,000 meters - 500 meters = 500 meters) by the descent rate (50 meters) per 3 minutes.
500 meters / 50 meters = 10 dives
Each dive takes 3 minutes, so the total time taken is 10 dives * 3 minutes = 30 minutes.
Therefore, it took the submarine 30 minutes to reach a depth of 1,000 meters.
To find out how many times the submarine descended 50 meters, we need to calculate the number of intervals of 50 meters that were covered in the total depth change.
The submarine starts at a depth of 500 meters and reaches a depth of 1,000 meters, which is a total change of 1,000 - 500 = 500 meters.
The submarine descends 50 meters every 3 minutes. To calculate the number of 50 meters intervals, we can divide the total depth change by the depth change per interval:
Number of intervals = Total depth change / Depth change per interval
Number of intervals = 500 meters / 50 meters = 10 intervals
Therefore, the submarine descended 50 meters 10 times. The answer is 10 times, option E.
To find out how many times the submarine descended 50 meters, we need to calculate the difference in depth between the starting depth (500 meters) and the final depth (1,000 meters).
The difference in depth is 1,000 meters - 500 meters = 500 meters.
Next, we need to determine how many times the submarine can descend 50 meters (given that it descends 50 meters every 3 minutes) to cover the difference of 500 meters.
To do this, we divide the difference in depth by the descent rate of 50 meters:
500 meters / 50 meters = 10 times.
Therefore, the submarine descended 50 meters 10 times to reach a final depth of 1,000 meters.
So the correct answer is: 10 times.