Question

Justin is 11.75 feet below sea level. He swims deeper into the water another 4.75 feet. What is his elevation with respect to the sea level? (Hint: Sea level is located at zero feet)

a) 7 feet below sea level
b) 6 feet below sea level
c) 16.5 feet below sea level
d) 15.5 feet below sea level

Answer 1

Justin was initially 11.75 feet below sea level. After swimming down an additional 4.75 feet, his new elevation is 16.5 feet below sea level.

Step-by-step explanation:

Justin is initially 11.75 feet below sea level. To find his new elevation after swimming deeper by 4.75 feet, we need to add the depth he swam to his initial depth, since both measurements are below sea level.

To calculate Justin's new elevation:
11.75 feet (initial depth) + 4.75 feet (additional depth) = 16.5 feet below sea level

Therefore, Justin is 16.5 feet below sea level.