a dolphin dove 31 meters below the surface. It traveled 16% of the total distance every second. What was the depth of the dolphin after 3 seconds?

To find the depth of the dolphin after 3 seconds, we need to calculate 16% of the total distance and then multiply it by 3.

16% of the total distance is 0.16 * 31 = 4.96 meters.

After 1 second, the dolphin covers 4.96 meters.
After 2 seconds, the dolphin covers another 4.96 meters, bringing the total depth to 4.96 * 2 = 9.92 meters.
After 3 seconds, the dolphin covers another 4.96 meters, bringing the total depth to 4.96 * 3 = 14.88 meters.

Therefore, the depth of the dolphin after 3 seconds is 14.88 meters.