Applications of adding rational numbers practice

Question

Scuba diver is 75 feet below sea level. She then ascends 12.7 feet.. What is the current death of the scuba diver?

Answer 1

To determine the current depth of the scuba diver, we start with her initial depth of -75 feet (since below sea level is negative) and then add the distance she ascends, which is +12.7 feet.

We can express this as:

\[ \text{Current Depth} = \text{Initial Depth} + \text{Ascend Depth} \] \[ \text{Current Depth} = -75 + 12.7 \]

Now, we perform the addition:

\[ -75 + 12.7 = -62.3 \]

Thus, the current depth of the scuba diver is 62.3 feet below sea level.