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a man paid the bank 4080 at the end of 3 years. this was the amount borrowed plus 12% interest for 3 years. how much money had he borrowed

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解答

amanpaidthebank4080attheendof3years.thiswastheamountborrowedplus12%interestfor3years.howmuchmoneyhadheborrowed

解答

Principal:3000
求解步骤
Translate the problem into an equation:4080=P(1+0.12⋅3)
求解 P,4080=P(1+0.12⋅3):P=3000
Principal:3000

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