Question

A submarine at -20 feet

descends 30 feet. What is the
submarine's current location
after the descent?

Answer 1

The submarine will be at -50 feet after the descent.

Explanation:

A submarine at -20 feet descends 30 feet. What is the submarine's current location after the descent?

If the starting point is -20 feet and it says that the submarine goes down another 30 feet we can write an equation and solve it.

Descending indicates going down or subtraction.

Let x=the current location after the descent.

-20+(-30)=x

-20-30=x

-50=x

The submarine will be at -50 feet after the descent.

Hope this helps :)

Answer 2

-50 because when you do -20 - (-30) give you -50 and it’s (-30) because descends means down also mean negative