Question

A dolphin is 30 feet below the surface of the water. She rises 23 feet, sinks 17 feet,and finally rises another 27 feet. If there are no other changes, the dolphin is –

Answer 1

Answer:

-3feet above water.

Step-by-step explanation:

let's take that when she rises up it is '-'

and when sinks down it is '+'

so

30-23+17-27= 47-50

= -3 feet ( which means that she is 3 feet above the surface of water).