Question

A submarine was cruising at a depth of 40m. It climbed 9m, then dove 14m, and then climbed 21m. Write an integer to represent the depth of the submarine after these changes

Answer 1

56

Explanation:

The submarine climbed 9m, so its depth is now 40m + 9m = 49m.

Then, it dove 14m, so its depth is now 49m - 14m = 35m.

Finally, it climbed 21m, so its depth is now 35m + 21m = 56m.

Therefore, the integer that represents the depth of the submarine after these changes is 56.

Answer 2

Step-by-step explanation:40 - 9 = 31+ 14= 45-21 =24.

If the submarine is 24m below the sea then a integer is -24