melissa is looking for a fish. she swims for 12 minutes, and rises upward by 15 meters. what is her final depth at the end of the 12 minutes?
no way to know. How deep was she when she started up?
As she swims around, looking for the fish, she swims for 12 minutes, and rises upward by 15 meters. What is her final depth at the end of the 12 minutes?
To find Melissa's final depth at the end of the 12 minutes, we need to know her starting depth. If no starting depth is given, we'll assume she starts at a depth of 0 meters.
Since Melissa rises upward by 15 meters, we need to subtract that from her starting depth to find her final depth.
Final depth = Starting depth - Rise
If Melissa starts at a depth of 0 meters, her final depth would be:
Final depth = 0 meters - 15 meters = -15 meters
Therefore, Melissa's final depth at the end of the 12 minutes is -15 meters. Note that the negative depth indicates that she has risen above the surface of the water by 15 meters.