Resourcesdown chevron
Testimonials
Plans
Sign in
Sign up
Resourcesright arrow
Testimonials
Plans
Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

A scientist uses a submarine to study ocean life. She begins at sea level, which is an elevation of o feet. She travels down 16.7 feet. She then ascends 12 feet. Next, she descends a second time, 84.6 feet. How many feet must she now rise 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 travels down 1616.77 feet.\newline- She then ascends 1212 feet.\newline- Next, she descends a second time, 8484.66 feet.\newlineHow many feet must she now rise to get back to sea level?\newlineAnswer: □\squarefeet

View step-by-step helpView step-by-step help
Homeright chevron icon
Math Problemsright chevron icon
Grade 7right chevron icon
Add, subtract, multiply, and divide decimals: word problemsright chevron icon

Full solution

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 travels down 1616.77 feet.\newline- She then ascends 1212 feet.\newline- Next, she descends a second time, 8484.66 feet.\newlineHow many feet must she now rise to get back to sea level?\newlineAnswer: □\squarefeet
  1. Determine initial descent: Determine the initial descent.\newlineThe scientist begins at sea level and descends 16.716.7 feet.\newlineInitial descent = −16.7-16.7 feet (negative because it's a descent)
  2. Calculate elevation after first ascent: Calculate the elevation after the first ascent.\newlineThe scientist ascends 1212 feet from the initial descent.\newlineElevation after ascent = Initial descent + Ascent\newlineElevation after ascent = −16.7-16.7 feet + 1212 feet\newlineElevation after ascent = −4.7-4.7 feet
  3. Determine elevation after second descent: Determine the elevation after the second descent.\newlineThe scientist descends an additional 84.684.6 feet after the first ascent.\newlineElevation after second descent = Elevation after ascent - Second descent\newlineElevation after second descent = −4.7-4.7 feet - 84.684.6 feet\newlineElevation after second descent = −89.3-89.3 feet
  4. Calculate total rise needed: Calculate the total rise needed to return to sea level.\newlineTo return to sea level, the scientist must rise by the same amount as the current negative elevation.\newlineRise needed to reach sea level = −(Elevation after second descent) - (\text{Elevation after second descent}) \newlineRise needed to reach sea level = −(−89.3 feet) - (-89.3 \text{ feet}) \newlineRise needed to reach sea level = 89.3 feet 89.3 \text{ feet}

More problems from Add, subtract, multiply, and divide decimals: word problems

Question
Convert the following repeating decimal to a fraction in simplest form.\newline.68‾ .6 \overline{8} \newlineAnswer:
Get tutor helpright-arrow

Posted 2 months ago

Question
Convert the following repeating decimal to a fraction in simplest form.\newline.94‾ .9 \overline{4} \newlineAnswer:
Get tutor helpright-arrow

Posted 2 months ago

Question
Convert the following repeating decimal to a fraction in simplest form.\newline.96‾ .9 \overline{6} \newlineAnswer:
Get tutor helpright-arrow

Posted 2 months ago

Question
Which expression is equivalent to 99.7−(−57.9) 99.7-(-57.9) ?\newline99.7−57.9 99.7-57.9 \newline57.9−99.7 57.9-99.7 \newline−57.9−99.7 -57.9-99.7 \newline99.7+57.9 99.7+57.9
Get tutor helpright-arrow

Posted 2 months ago

Question
Find the value of x x in the equation below.\newlinex−13.6=7.6 x-13.6=7.6 \newlineAnswer: x= x=
Get tutor helpright-arrow

Posted 2 months ago

Question
A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she dropped 6868.11 feet. How many feet had she been below sea level, if she was 155155.44 feet below sea level after she dropped?\newlineAnswer: □\square feet
Get tutor helpright-arrow

Posted 2 months ago

Question
A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she went down 3636.33 feet. How many feet had she been below sea level, if she was 9999.77 feet below sea level after she went down?\newlineAnswer: □\square feet
Get tutor helpright-arrow

Posted 2 months ago

Question
A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she descended 2222 feet. How many feet had she been below sea level, if she was 5252.33 feet below sea level after she descended?\newlineAnswer: □\square feet
Get tutor helpright-arrow

Posted 2 months ago

Question
A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she dropped 8888.66 feet. How many feet had she been below sea level, if she was 182182.55 feet below sea level after she dropped?\newlineAnswer: □\square feet
Get tutor helpright-arrow

Posted 2 months ago

Question
A scientist was in a submarine, 4141.44 feet below sea level, studying ocean life. Over the next ten minutes, she rose 3333.66 feet. How many feet was she now below sea level?\newlineAnswer: □\square feet
Get tutor helpright-arrow

Posted 2 months ago

View all (48)