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A scientist uses a submarine to study ocean life. She begins at sea level, which is an elevation of o feet. She descends 51.5 feet. She then rises 10.3 feet. Next, she travels down a second time, 74.5 feet. How many feet must she now ascend to get back to sea level? Answer: feet

A scientist uses a submarine to study ocean life.\newline- She begins at sea level, which is an elevation of o feet.\newline- She descends 5151.55 feet.\newline- She then rises 1010.33 feet.\newline- Next, she travels down a second time, 7474.55 feet.\newlineHow many feet must she now ascend to get back to sea level?\newlineAnswer: □\squarefeet

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Q. A scientist uses a submarine to study ocean life.\newline- She begins at sea level, which is an elevation of o feet.\newline- She descends 5151.55 feet.\newline- She then rises 1010.33 feet.\newline- Next, she travels down a second time, 7474.55 feet.\newlineHow many feet must she now ascend to get back to sea level?\newlineAnswer: □\squarefeet
  1. Descent to −51.5-51.5 feet: The scientist starts at sea level, which is 00 feet. She first descends 51.551.5 feet, which means she goes below sea level.\newlineCalculation: 0−51.5=−51.50 - 51.5 = -51.5 feet
  2. Rise to −41.2-41.2 feet: Next, she rises 10.310.3 feet, which means she is coming closer to sea level.\newlineCalculation: −51.5+10.3=−41.2-51.5 + 10.3 = -41.2 feet
  3. Further Descent to −115.7-115.7 feet: Then, she descends another 74.574.5 feet, going further below sea level.\newlineCalculation: −41.2−74.5=−115.7-41.2 - 74.5 = -115.7 feet
  4. Ascend to Sea Level: To determine how many feet she must ascend to get back to sea level, we take the absolute value of her current elevation because ascent is a positive change in elevation.\newlineCalculation: ∣−115.7∣=115.7|-115.7| = 115.7 feet

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