Question

Starting at sea level, a submarine descended at a constant rate to a depth of −5/6 mile relative to sea level in 3/4 minutes.

The submarine continues to descend at the same rate. What is the submarine's depth relative to sea level after the first minute?

Enter your answer as a simplified mixed number in the box

15 points

Answer 1

The submarine descends at a rate of 5/6 miles per 3/4 minute, which is equivalent to:

(5/6) ÷ (3/4) = 10/9 miles per minute

After the first minute, the submarine will have descended:

10/9 miles

which is equivalent to:

1 1/9 miles