Last one !
How long will it take to earn $525 in interest if $3500 is invested at a 6% annual interest rate?
a.
2 years
c.
25 years
b.
2.5 years
d.
3 year

Question

Last one ! 
How long will it take to earn $525 in interest if $3500 is invested at a 6% annual interest rate?
a.
2 years
c.
25 years
b.
2.5 years
d.
3 year

ivettef365 · Answer

use formula: I = Prt

ivettef365 · Answer

so you have 
I = 525
P = 3500
r = 6% = (0.06)
find t

ivettef365 · Answer

so the way you set up the formula as follows:

525 = 3500 (0.06) t   find t

anonymous · Answer

i still dont understand it :x

ivettef365 · Answer

the way you solve this equation as follows:

  525 = 210 t   (I just multiplied 3500 x 0.06)
----     ----
210       210

then you have

t = 525 / 210

ivettef365 · Answer

do you understand ??

anonymous · Answer

OHH ok now i get wea u commin from lol its 2.5 years

ivettef365 · Answer

good job