这是一道英语的数学题,请大家帮忙! 谢谢了!16. Maggie deposits a sum of money in a bank at an interest rate of 7％ p.a. compounded half-yearly.If the interest she received after 3 years is 1834, find the principal.

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这是一道英语的数学题,请大家帮忙! 谢谢了!16. Maggie deposits a sum of money in a bank at an interest rate of 7％ p.a. compounded half-yearly.If the interest she received after 3 years is 1834, find the principal.
这是一道英语的数学题,请大家帮忙! 谢谢了!
16. Maggie deposits a sum of money in a bank at an interest rate of 7％ p.a. compounded half-yearly.If the interest she received after 3 years is 1834, find the principal.

这是一道英语的数学题,请大家帮忙! 谢谢了!16. Maggie deposits a sum of money in a bank at an interest rate of 7％ p.a. compounded half-yearly.If the interest she received after 3 years is 1834, find the principal.
Let the pricipal be P
p*(1+0.07/2)^6=1834+P
1.22P=1834+P
P=7999.81=8000

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