SOLUTION: Story problems are my worst; however I think i've solved this can you please check for me. Thanks! V=-2000t+20,000 describes the values in dollars of a certain model of car after

Algebra ->  Equations -> SOLUTION: Story problems are my worst; however I think i've solved this can you please check for me. Thanks! V=-2000t+20,000 describes the values in dollars of a certain model of car after      Log On


   



Question 135257: Story problems are my worst; however I think i've solved this can you please check for me. Thanks!
V=-2000t+20,000 describes the values in dollars of a certain model of car after it is t years old If a car is work $12000 substitute 12,000 into the equatio to find the age of the car.
I came up with 4 years.

Answer by ptaylor(2198) About Me  (Show Source):
You can put this solution on YOUR website!

YOU ARE ABSOLUTELY RIGHT!!!!! ON ALL COUNTS----GOOD WORK!!!!!
12000=-2000t+20000 subtract 20000 from each side
12000-20000=-2000t+20000-20000 collect like terms
-8000=-2000t divide both sides by -2000
t=4 years

Hope this helps--ptaylor