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Mathematics 21 Online
OpenStudy (anonymous):

According to the rule of 70, how many years will it take an investment that is making 4.5 percent interest to double in size? 70 years 15.56 years 31.5 years 4.5 years

OpenStudy (anonymous):

@phi

OpenStudy (anonymous):

@Directrix

OpenStudy (welshfella):

i think its 70 divided by the interest rate 70 / 4.5

OpenStudy (welshfella):

- if mt#y memory serves me right

OpenStudy (anonymous):

I hope your memory is good

OpenStudy (anonymous):

not its not

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