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

What was the submarine's depth relative to sea level after the first minute?

2 Answers

2 votes
if it were 4 then it would be 1 1/3 for one minute
User Malificent
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4 votes

Answer:


\texttt{Submarine's depth relative to sea level after the first minute = }-(4)/(15) miles

Explanation:

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

Total time = 3 minutes


[tex]\texttt{Total depth descended in 3 minutes = }-(4)/(5)miles[/tex]

We need to find what was the submarine's depth relative to sea level after the first minute,


\texttt{Depth descended in per minute = }-((4)/(5))/(3)=-(4)/(15)miles


\texttt{Submarine's depth relative to sea level after the first minute = }-(4)/(15)* 1=-(4)/(15) miles\\\\\texttt{Submarine's depth relative to sea level after the first minute = }-(4)/(15) miles

User Sveinn Fannar
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