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Suppose that a phone that originally sold for $800 loses 3/5 of its value each year after it is released.


After 2 years, how much is the phone worth?




Write an equation for the value of the phone, , years after it is released.

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touchmahdram

Answer:

It will be worth $128.

Step-by-step explanation:

After 1 year, 3/5 of 800 is 480 which leaves the value at $320, and then after 2 years, 3/5 of 320 is 192. 320-192 leaves the value at $128.

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