Homework Help: math

Posted by Anonymous on Sunday, September 26, 2010 at 10:36pm.

the value, v, of a shopkeepers inventory software program is given by v= -(1)/(3)t+5 where t is the number of years since the shopkeeper bought the program. What is the program worth 9 years after its first year purchased? Plot the point with the given t-value, 9.
after 9 years the program is worth $2
After how many years is the value of the software $3?

math - MathMate, Monday, September 27, 2010 at 10:11am
Substitute $3 for v to get
3=-(1/3)t+5
Solve for t.

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