SOLUTION: The price of a computer component is decreasing at a rate of 10% per year. State whether this decrease is linear or exponential. If the component costs ​$90 ​today, w

Algebra ->  Linear-equations -> SOLUTION: The price of a computer component is decreasing at a rate of 10% per year. State whether this decrease is linear or exponential. If the component costs ​$90 ​today, w      Log On


   

Question 1129959: The price of a computer component is decreasing at a rate of 10%
per year. State whether this decrease is linear or exponential. If the component costs ​$90 ​today, what will it cost in three​ years?
Is the decline in price linear or​ exponential? _______
What will the component cost in three​ years? _______
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
exponential rate of decrease
+c+=+90%2A%28+1+-+.1+%29%5Et+
+t+ = number of yrs from now
+c+=+90%2A.9%5E3+
+c+=+90%2A.729+
+c+=+65.61+
In 3 yrs it will cost $65.61