you invest $4000 in an account that pays simple interest of 4% for 10 years. how much will you have in 10 years?
Annual interest - 4%
interest in 1 year
(4/100) 4000
160
interest in 10 years
160 10
1600
So the amount you have at the end of 10 years
4000 + 1600
$ 5600
I=PRT
find interst earned total and add to 4000
I=PRT
interest=principal times rate times time in years
principal=4000
rate=0.04
time in years=100
I=40000.0410
I=1600 earned
add to total
4000+1600=$5600