Question

A swimmer dove below the surface of the ocean. After 2 minutes, she was 12 meters below the surface. At what rate was she diving? Which equation matches?

1. -12+x=2
2. 2+x=(-12)
3. -2x=(-12)
4. 2x=(-12)

Answer 1

4. 2x=(-12)

Explanation:

x is the number of meters below the surface per minute

2x is 2 minutes

-12 is 12 meters below the surface