Posted by **angela** on Tuesday, August 14, 2012 at 5:16pm.

a new automobile depreciated 20% of its value after 1 year. if the automobile is priced at $18,000 after 1 year, what was its cost when it was new?

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**Ms. Sue**, Tuesday, August 14, 2012 at 5:27pm
0.8x = 18,000

Solve for x.

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**angela**, Tuesday, August 14, 2012 at 5:29pm
What is x?

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**Ms. Sue**, Tuesday, August 14, 2012 at 5:38pm
x = cost when new

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**angela**, Tuesday, August 14, 2012 at 5:42pm
how do you put it in a sequence

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**Ms. Sue**, Tuesday, August 14, 2012 at 5:48pm
0.8x = 18,000

x = 18,000/0.8

x = 22,500

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**angela**, Tuesday, August 14, 2012 at 5:51pm
Would this be a arithmetic sequence

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**Ms. Sue**, Tuesday, August 14, 2012 at 5:59pm
No. I don't know what a sequence has to do with your original problem.

Please explain.

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**Angela**, Tuesday, August 14, 2012 at 6:02pm
Can you write it in a sentence

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**Ms. Sue**, Tuesday, August 14, 2012 at 6:03pm
When the car was new, it cost $22,500.

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