Question

The formula A = P +Prt represents the relationshipbetween the principal, P, interest rate, r, and amount ofmoney, A, in an account over a period of time, t.Solve the equation for P.

Answer 1

Problem

The formula A = P +Prt

Solution

We can take common factor and we got:

A= P(1+rt)

And we can divide both sides by 1+rt and we got:

P = A /(1+rt)