a diving board is 4 feet above a pool that is 15 feet deep. The total length of a person's dive is 10 feet. How many feet below the surfac of the water did the person dive

What is 10 - 4?

Right.

To find out how many feet below the surface of the water the person dived, we need to subtract the depth of the pool (15 feet) and the height of the diving board (4 feet) from the total length of the dive (10 feet).

Let's calculate it step by step:

Step 1: Subtract the height of the diving board from the total length of the dive:
10 feet - 4 feet = 6 feet

Step 2: Subtract the depth of the pool from the result from Step 1:
6 feet - 15 feet = -9 feet

The negative value (-9 feet) indicates that the person dove 9 feet below the surface of the water.