Question

anna is in a cave 40 feet below the cave entrance. She descends 13 feet, hen ascends 18 feet. Find her new position relative to the cave entrance

Answer 1

-40-13=-53
-53+18=-35
35 feet below the cave entrance

Answer 2

35 below the cave entrance.

Explanation:

Let the cave entrance be the level from which the positions of Anna will be covered.

Anna is 40 feet below the cave entrance.

That means her position will be considered as (-40) feet.

Then she descends 13 feet then the position of Anna will be = -40 - 13 = -53 feet

Further she ascends 18 feet so her position will be = -53 + 18 = -35 feet

Therefore, the new position of Anna is 35 below the cave entrance.