A submarine at a depth of 675 feet below the surface rose to 1/3 this depth. Which of the following represents the new depth of the submarine below the surface?

Question

675 feet and rose to 1/3 of this depth.

Answer 1

Hello Jecy,

 

   Thought I'd take a crack at the question.

 

If the depth of the submarine is at a depth of 675. That is your total depth at the time. To calculate 1/3 of the depth, 675 must be multiplied by 1/3.

 

675/1 x 1/3= 675/3                          675÷3=225              225 is the new depth.

 

 

Answer 2

1/3 of 675 is 225                  [In word(story) problems, the word "of" usually means multiply]

 

675 feet below the surface might be represented as -675 feet.

In that case, the submarine rose to -225 feet.