Question

I NEED HELP ASAP
Annual Interest Rate: A = P+Prt
Solve for r.

Answer 1

r =
`(A-P)/(Pt)`

Explanation:

Step 1: Subtract P from both sides.

• 
  `P+Prt-P=A-P`
• 
  `Prt= A - P`

Step 2: Divide both sides by Pt.

• 
  `(Prt)/(Pt) = (A-P)/(Pt)`
• 
  `r= (A-P)/(Pt)`