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kotykmax [81]
3 years ago
11

How do u find interest rate

Mathematics
2 answers:
Bezzdna [24]3 years ago
5 0
A = P(1 + rt)


A = Total Accrued Amount (principal + interest)
P = Principal Amount
I = Interest Amount
r = Rate of Interest per year in decimal; r = R/100
R = Rate of Interest per year as a percent; R = r * 100
t = Time Period involved in months or years
From the base formula, A = P(1 + rt) derived from A = P + I and I = Prt so A = P + I = P + Prt = P(1 + rt)
podryga [215]3 years ago
5 0

A = P(1 + rt)

<span>A = Total Accrued Amount (principal + interest)P = Principal AmountI = Interest Amountr = Rate of Interest per year in decimal; r = R/100R = Rate of Interest per year as a percent; R = r * 100t = Time Period involved in months or years</span>

From the base formula, A = P(1 + rt) derived from A = P + I and I = Prt so A = P + I = P + Prt = P(1 + rt)

Note that rate r and time t should be in the same time units such as months or years. An example would be...

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