Answer:
A submarine submerged at a depth of 40.21 feet dives 57.35 more feet down. What is the new depth of the submarine?
Explanation:
Solving:
Rewrite the equation:
It first dived 40.21 feet so our equation is -40.21 + ? so far.
Next it dives another 57.35 feet so the final equation becomes -40.21 + (57.35)
To answer:
-40.21 + (57.35)= -97.56
Hence, the answer would be -97.56