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**A roller coaster begins at 90 feet above ground level.**

Then it descends 105 feet.

Find the hight of the coaster after the first decent.

**Answer**

15 feet below ground level or -15 feet.

Take the starting height (90) and subtract how much it descends (105) from it.

90-105=-15.

The height after the first descent is -15 feet or 15 feet below ground level.

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##### Virtual Teaching Assistant: John B.

##### Question Level: Basic

##### Karma: Free

##### Upload Date: 5/31/2017

This 25 words question was answered by John B. on StudySoup on 5/31/2017. The question contains content related to Math Since its upload, it has received 175 views.