Christy dove to a depth of 12 feet below the surface of the water. she then swam 12 feet back up to the surface. Use integers to find the overall change in feet.

Question

asked Jul 14, 2019 200k views

2 Answers

Mantu Nigam · Answer 1 · 2019-07-19T03:53:56+0000

Christy dove to the depth of 12 feet below the surface = -12 feet

(Below sea level means to be below zero, which are negative numbers)

Christy dove 12 feet back up to the surface= +12 feet

( When we come back up to the surface, the distance is taken always positive)

Therefore, we have to find the overall change,

Overall change = -12 feet + 12 feet

= -12 feet + 12 feet

= 0 ft.

Therefore, overall change is 0 ft.