Question

solve for the indicated variable. include all of your work in your answer. submit your solution. A=1+prt; for r

Answer 1

Step 1. Subtract 1 from bot sides of the equation:
$A-1=1-1+prt$
$A-1=prt$

Step 2. Divide both sides of the equation by $pt$:
$\frac{A-1}{pt} = \frac{prt}{pt}$
$\frac{A-1}{pt}=r$
$r=\frac{A-1}{pt}$

We can conclude that  after solving the equation A=1+prt; for r, we get $r=\frac{A-1}{pt}$