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Mathematics 14 Online
OpenStudy (anonymous):

I WILL GIVE MEDAL OR A FAN!! Mary deposits $1,000 from her part time job intro an account that earns 5% How much interest will Mary earn after 2 years?

OpenStudy (here_to_help15):

Well first if she gets 5% every year its gonna be !,000*5=? ?*5=?

OpenStudy (here_to_help15):

1,000 my bad lol

OpenStudy (anonymous):

So it's 5,000 right?

OpenStudy (here_to_help15):

it should come out to 2250

OpenStudy (here_to_help15):

because you remeber 5 percent in a decimal is .5

OpenStudy (anonymous):

Thank you so much : )

OpenStudy (here_to_help15):

No probelm!

OpenStudy (anonymous):

Also, another question.. Cara puts $60 in a bank account. she has an annual interest rate of 3.5. She earned $21 in interest. How long did she have the bank account?

OpenStudy (here_to_help15):

k

OpenStudy (here_to_help15):

1 year

OpenStudy (anonymous):

Thank you!

OpenStudy (anonymous):

Can you tell me how you got one year please?

OpenStudy (here_to_help15):

Np

OpenStudy (here_to_help15):

k

OpenStudy (here_to_help15):

3.5 as a percent is 3.5 as a decimal

OpenStudy (here_to_help15):

so multiply that with 60 you get 210

OpenStudy (here_to_help15):

since it was 3.5 you move the decimal over once and you get 21.0

OpenStudy (anonymous):

Thank you : ]

OpenStudy (here_to_help15):

np

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