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Mathematics 13 Online
OpenStudy (tal_tal):

Fan and medal! Elevator 1 in an office building moved from ground position to a final position of +12 feet. Elevator 2 in the same building moved from ground to a final position of −15 feet. Which statement best describes the final positions of these two elevators?

OpenStudy (tal_tal):

Elevator 1 is 12 feet above ground level, and Elevator 2 is 15 feet below the position of Elevator 1. Elevator 1 is 12 feet below ground level, and Elevator 2 is 15 feet above the position of Elevator 1. Elevator 1 is 12 feet above ground level, and Elevator 2 is 15 feet below ground level. Elevator 1 is 12 feet below ground level, and Elevator 2 is 15 feet above ground level.

OpenStudy (anonymous):

Okay, I am back again...one second.

OpenStudy (tal_tal):

okay :)

OpenStudy (anonymous):

Okay, well which answers can we eliminate almost instantly?

OpenStudy (anonymous):

@Tal_Tal

OpenStudy (anonymous):

It's definitely not A and C, because it says ABOVE the ground. Bringing us down to B and D. What answer do you think it is?

OpenStudy (anonymous):

@EliLightE I want her to figure it out...give her a second.

OpenStudy (tal_tal):

D?

OpenStudy (anonymous):

Nope. So they are both at ground level correct? @Tal_Tal

OpenStudy (tal_tal):

C

OpenStudy (anonymous):

Therefore, Building 1 is 12 feet above ground level right?

OpenStudy (tal_tal):

Yes

OpenStudy (anonymous):

and yes, C is correct, because Building 2 is 15 feet below ground level.

OpenStudy (anonymous):

Correct! don't forget to fan and medal!

OpenStudy (tal_tal):

Thanks!

OpenStudy (anonymous):

Here are two important key words. +12 feet above ground <-- Meaning 12 feet above ground -15 feet above ground <-- Meaning 15 feet below ground That's my tip of advice next time you see a question like that. Hope you understand how this works! ~Q

OpenStudy (anonymous):

You are welcome! :)

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