MazieSykess MazieSykess

03-05-2018
Mathematics

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You bought a guitar 6 years ago for $400. It's value decreases by about 13% per year. Write a formula to show the value of the guitar over those six years and determine its current value

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musiclover10045 musiclover10045

03-05-2018

this would be a depreciation formula
which is value = Original price x (1-percent change)^time
using the information from the problem

Value = 400 x(1-0.13)^6

value = 400 x 0.87^6

value = $173.45

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