You buy a computer for $2100. The computer decreases by 50% annually. When will the computer have a value of $600?

Answer 1

Hello!

Conceptually, looking at this problem we can see that the decrease only happens once a year so the "time" that we are looking for is going to be a whole number. The first year the value will drop to $1050, the next year the value will drop to $525. Although guessing this way is not always teacher approved it does help you to get an idea of the answer that you are looking for. The computer will never have a value of exactly $600 at the end of the year. It's value is between two values, $1050 and $525. It will take 2 years for the value to go below $1050. I hope this helps. - Val