Question 365600: P= A/1+rt solve for r
Answer by Jk22(389)   (Show Source):
You can put this solution on YOUR website! P = A/1+rt
if rt != -1, P + Prt = A, by multiplying
Prt = A - P, by substracting P
if Pt != 0, then r = (A-P)/Pt
if Pt = 0, then, if P = 0, t != 0, then solution exist if A = 0 forall r
if P != 0, t = 0, solution if A = P forall r
if P = 0, t = 0, solution if A = 0 forall r
if rt = -1, no solution exit
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