You deposit $2000 in an account that earns simple interest at an annual rate of 4%. How long must yo

You deposit $2000 in an account that earns simple interest at an annual rate of 4%. How long must you leave the money in the account to earn $500 in interest?

The simple interest formula for the accumulated balance is:
I = Prt

We are given P = 2,000, r = 0.04, and I = 500.
500 = 2000(0.04)t
80t = 500

Divide each side by 80
t = 6.25 years.