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Submarine – Depth Per Dive
publish date: 2026/05/07 20:14:23.007485 UTC
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In a series of 3 equal dives, a submarine is programmed to reach a depth of 3,030 feet below the ocean surface.
What signed number describes how deep each dive will be?
Correct Answer
-1,010 ft
Explanation
Target depth as a signed number: \(-3{,}030\) ft. Divided equally over 3 dives:
\[ -3{,}030 \div 3 = -1{,}010 \]
Unlike signs → negative. Each dive descends 1,010 feet. Check: \(-1{,}010 \times 3 = -3{,}030\) ✓
Reference
go-math-science.com