Question

Jim is standing beside a pool. He drops a weight 4 feet above the surface of the water in the pool. The weight travels a total distance of 12 feet down before landing on he bottom of the pool. Explain how you can write a sum of interger to find the depth of the water

Answer 1

Explanation:

4+-12=-8, but they are asking for the depth not the distance so the answer is 8.

Answer 2

weight goes 4 feet down before hitting the pool
therefor the pool is 12-4 ft or 8ft deep



(12)+(-4)=8 is the sum of integers
12 is an integer
-4 is an integer