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Rana K.

asked • 04/26/19

Math 12 Help (Find missing variables)

Hello. I'm looking for a variable, "t"


Using the formula

A=P(1+r/n)^nt


We know the following:

A=2025

P=870

r=0.105

n=365

t=?

"I" represents interest earned and is equal to (A - P),

The answer for t is 8.05 but I'm unsure how to reach this number. My work is as follows:


A=P(1+r/n)^nt

2025 = 870(1 + 0.105/365)^365t

2025/870 = (1 + 0.105/365)^365t

2.327586 = (1.000288)^365t

(this is where I am lost)


Where am I making my mistake? I am over-thinking this question, I believe.

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