The equation which is equivalent to the given simple interest formula is
[tex]P=\frac{A}{1+rt}[/tex].
What is an equivalent equation?
Equivalent equations are algebraic equations that have identical solutions.
According to the given question.
We have a simple interest formula.
[tex]A=P(1+rt)[/tex]
Now, the equivalent equation for the above formula can be given as
[tex]A=P(1+rt)[/tex]
⇒[tex]P=\frac{A}{1+rt}[/tex]
Hence, the equation which is equivalent to the given simple interest formula is [tex]P=\frac{A}{1+rt}[/tex].
Thus, option A is correct.
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