A scuba diver starts at sea level and then dives below sea level by 42 feet. The diver then ascends 18 feet and follows that by descending 7 feet. What is the diver's current depth?
Responses
31 feet below sea level
53 feet below sea level
67 feet above sea level
67 feet below sea level
To calculate the diver's current depth, we need to subtract the ascents from the descents.
The diver started at sea level, then descended 42 feet below sea level, which gives us -42 feet.
The diver then ascended 18 feet, so we add that to the current depth (-42 + 18 = -24 feet).
Finally, the diver descended 7 feet, so we subtract that from the current depth (-24 - 7 = -31 feet).
Therefore, the diver's current depth is 31 feet below sea level.
The correct response is: 31 feet below sea level.
To determine the diver's current depth, we can add or subtract the depths at each step.
Starting at sea level, the diver first descends by 42 feet below sea level:
Sea level - 42 feet = -42 feet
Next, the diver ascends by 18 feet:
-42 feet + 18 feet = -24 feet
Finally, the diver descends by 7 feet:
-24 feet - 7 feet = -31 feet
Therefore, the diver's current depth is 31 feet below sea level.
The correct response is:
31 feet below sea level
To find the diver's current depth, we need to consider their initial depth, the changes in depth during the dive, and the order in which these changes occurred.
Starting from sea level, the diver descends below sea level by 42 feet. To calculate the depth after descending, we subtract 42 from 0 (sea level) which gives us -42 feet.
Next, the diver ascends by 18 feet. Adding 18 to the previous depth of -42 feet gives us -24 feet.
Finally, the diver then descends by 7 feet. Subtracting 7 from the previous depth of -24 feet gives us -31 feet.
Therefore, the diver's current depth is 31 feet below sea level.