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When a construction worker is on a platform 10 feet above the ground, we can describe her elevation as +10 feet.


A construction worker digs down to 30 feet below the platform. What is her elevation?

Answer :

It is 30 feet BELOW the platform, so the number is -20 because the platform is 10 feet above ground level.

Her elevation is - 20 because she is 10 feet above ground level, which is 10, and she digs 30 feet down so 10 - 30 is -20.

Hope this helps. :)

StarDolly07

Answer:

-20 feet

Step-by-step explanation:

Ok, if the construction worker is first at 10 feet above the ground. If the construction worker goes 30 feet below the platform, the equation can be this: 10 - 30 = e or elevation. Remember that it states that the construction worker digs 30 feet below the platform, and not below the ground. Because 10 - 30 is -20, we know that the construction worker's elevation is -20.

I hope this helps :)

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