Question

Jillian is looking up certain cities' elevations. She finds that New Orleans is 7 feet below sea level and that Oklahoma City is about 1000 feet above sea level. What number represents New Orleans's elevation?

Answer 1

SOLUTION

GIVEN

• Jillian is looking up certain cities' elevations.

• She finds that New Orleans is 7 feet below sea level and that Oklahoma City is about 1000 feet above sea level.

TO DETERMINE

The number represents New Orleans's elevation

EVALUATION

Here it is given that Jillian is looking up certain cities' elevations.

She finds that New Orleans is 7 feet below sea level and that Oklahoma City is about 1000 feet above sea level

We consider that the number 0 represent the sea level

We treat below sea level as negative and above sea level as positive

So the number represents New Orleans's elevation

= Sea level - 7

= 0 - 7

= - 7

So the number represents Oklahoma City elevation

= Sea level + 1000

FINAL ANSWER

- 7 is the number that represents New Orleans's elevation

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