To find out how many meters below sea level Martina is after swimming up and then diving down, we can calculate it step by step.
- Starting Position: Martina is at 4 meters below sea level.
- Swimming Up: She swims up 3 meters.
- She goes from -4 meters to -4 + 3 = -1 meter (1 meter below sea level).
- Diving Down: Then she dives down 3 meters.
- From -1 meter, she goes down to -1 - 3 = -4 meters (4 meters below sea level).
So, after swimming up and then diving down, Martina is 4 meters below sea level.
To fit it into the equation form you provided:
3 + (__) = __
The blank (__) that represents the position after swimming up is -1 (because she ends at -1 before diving down): So: 3 + (-1) = -1
And after diving down, the always negative position is -4: So: -1 + (-3) = -4
In summary, the answer is:
Martina is 4 meters below sea level after her swim.
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