The Formula Of Mathematical Fiscal Annuities

definition of Annuity

An annuity is an sum of loan repayment of an equal sum paid out over a catamenia of time, as well as consists of the involvement as well as the installment.

Annuity formula:

Annuity = Installment + Interest

AN = A_n + B_n

Formula Installment:

A_n = A₁ (1 + i) ^n-1

Information :

AN = Annuity 

A_n = nth installment

A₁ = 1st installment

i = Interest Rate

B_n = The nth interest

Example:

Influenza A virus subtype H5N1 Loan volition endure repaid amongst a monthly annuity system. If the annuity sum is $.400.000,00. Please decide the fifth installment if the fifth Interest $.315.000,00 !!!!

Answer:

AN = $400,000

B₅ = $315,000

AN = A₅ + B₅

$400,000 = A₅ + $315,000

A₅ = $400,000 - $315,000

A₅ = $85,000

So the fifth installment is $85,000

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