A few days ago
Anonymous

Word Problem Help?

A school district purchases a printer for $25000. After 10 years, it will need to be replaced. Its value at that time will be $2000. Write a linear equation giving the value V of the equipment during the 10 years it will be used. Determine the year in which the value of the equipment is $15000.

Top 2 Answers
A few days ago
hayharbr

Favorite Answer

You need to find the slope, which is change in value over change in years. So that’s (25000 – 2000) over (0 – 10)

which is 23000/-10 or -2300

So the equation is V = -2300 t + 25000 where V = value and t = time in years. The 25000 in the equation is from the fact that when t = 0, the V is 25000.

Now just put 15000 for V getting 15000 = -2300 t + 25000

Subtract 25000 from both sides then divide by -2300

Hope that makes sense

1

A few days ago
Oh_Heck_Yeah
Look in your math book and on the web for information about future value and/or time/value of money.
0