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Mathematics 17 Online
OpenStudy (anonymous):

Noel currently has a balance of $2,300.37 in an account he has held for 34 years. He opened the account with an initial deposit of $874. What is the simple interest rate on the account?

OpenStudy (anonymous):

a. 2.9% b. 7.7% c. 1.8% d. 4.8%

OpenStudy (mertsj):

How much interest did he earn in those 34 years?

OpenStudy (anonymous):

a*i(x)=f a= is the initial amount x= is the amount of time f = is the final amount i = is the interest

OpenStudy (anonymous):

1,426.37

OpenStudy (mertsj):

interest = principal (rate)(time)

OpenStudy (anonymous):

what? i took the ending amount and subtracted the beginning amount from it

OpenStudy (mertsj):

1426.37=874(r)(34) 1426.37=29716r .048=r

OpenStudy (anonymous):

ooohh okay so D? thank you!

OpenStudy (anonymous):

yeah it's D

OpenStudy (mertsj):

yep

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