457,860 views
42 votes
42 votes
The expression - 250 + 16z represents a submarine that began at a depth of 250 feet below sea level

and ascended at a rate of 16 feet per minute. What was the depth of the submarine after 9 minutes?

User CypherX
by
2.5k points

1 Answer

23 votes
23 votes
= -250 + 16z
= -250 + 16(9)
= -250 + 144
= -106 feet
User Starblue
by
3.3k points