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nataly862011 [7]
3 years ago
7

If y varies with x, and y equals 10 when x equals 4, find when y equals 80

Mathematics
1 answer:
Ratling [72]3 years ago
6 0
Find x when y equals 80? If so I believe x=32 
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I need help please ​
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Answer:

  B.  $2862

Step-by-step explanation:

Using n=5 in the given equation, we get ...

  A(5) = 2700 + (5-1)(.015·2700) = 2700 +4(40.50)

  A(5) = 2862.00

In year 5, you will have $2862 in the account.

_____

<em>Comment on the given equation</em>

The given equation tells you the amount in the account at the <em>beginning</em> of the year, before it earns any interest. Since that is the equation given, we presume that is the answer desired. In most "account balance" problems, you are interested in the amount at the <em>end</em> of the interest-earning period.

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