Question

A diver descends 20 feet in the water from the boat at the surface of a lake. He then rose 12 feet and descend another 18 feet. At this point what is his depth in water?

Answer 1

Answer:

Step-by-step explanation:

Diver descends into water = 20 feet (Given)

Diver raises into water = 12 feet (Given)

Diver descends into water  = 18 feet(Given)

Initially, the diver is at the surface of the lake,

Thus,

When the diver descends 20 feet, the depth of water here is 20 feet

The diver then ascends 12 feet;

Hence, the depth of water

= 20 - 12  

= 8 feet

Now, the diver descends another 18 feet

Hence, the depth of water here

= 8 + 18

= 26 feet

Hence, the final depth in water is 26 feet.

Answer 2

Answer:

Diver descends into water  = 20 feet

Diver raises into water = 12 feet

Diver descends into water again = 18 feet

Thus, When the diver descends 20 feet, the depth of water here is 20 feet

The diver                then ascends 12 feet;

Hence, the depth of water  

       = 20  The depth of water is 8 feet          

 - 12

   8

Now, the diver descends another 18 feet

Hence, the depth of water here

= 18

+ 8

 26

Hence, the final depth in water is 26 feet