SOLUTION: Trying to figure out how to do this formula: I=$90 P=? R=.04 t=.25

SOLUTION: Trying to figure out how to do this formula: I=$90 P=? R=.04 t=.25

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Question 1017448: Trying to figure out how to do this formula:
I=$90
P=?
R=.04
t=.25
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Simple interest is found by
I = Prt
If you want the principal, P, you need to find
P = I / rt = $90 / (.04)(.25) = $9000
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