Homework Help: math 213

Posted by billy bob on Monday, April 19, 2010 at 6:29pm.

The effect of depreciation can be computed using a formula similar to the formula for compound interest.
a. Assume depreciation is the same each month. Write a problem involving depreciation and solve it.

b. Develop a general formula for depreciation defining what each variable in the formula stands for.

math 213 - Damon, Monday, April 19, 2010 at 7:18pm
This is not straight line depreciation but a constant percentage depreciation per month.

let value after a month be d times value the month before. (like 0.97 or something)

Then value after n months = original value * d^n

for example if I buy a $500 appliance
and d = .97 per month
then after 2 years
value = 500(.97)^24
= 500(.481)
= $ 241

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