A submarine at an elevation of -35 feet rises 35 feet. What is the elevation of the submarine after it rises?
a. -70 feet
b. 0 feet
c. 35 feet
d. 70 feet
please answer and explain
What do you think?
my answer is b. but I don't know what is the elevation mean
B is right.
Elevation is the height or distance above sea level. The sub was at 35 feet below the level of the sea (-35). It then rose 35 feet so that it came to the surface at 0 feet above sea level.
thank you ,Ms.Sue
You're welcome, Thomas.
that task it not look the same questions :(
To find the elevation of the submarine after it rises, we need to add the change in elevation to its initial elevation. In this case, the submarine rises 35 feet, so we need to add 35 feet to its initial elevation of -35 feet.
To do this, we can use the concept of addition. Adding a positive number is equivalent to moving up or increasing the value. So, adding 35 feet to the initial elevation of -35 feet means moving up or increasing the value.
When we add -35 feet and 35 feet, the negatives and positives cancel out, and we are left with 0 feet.
Therefore, the correct answer is b. 0 feet.
Explanation: We can use the concept of adding a positive number to calculate the final elevation of the submarine.