If A = p + prt,then r =
E) A - p - pt

Name: If A = p + prt,then r = E) A - p - pt
Brand: Quizplus
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Question

Quizplus · Accepted Answer

To solve for r, we need to isolate it on one side of the equation. 
A = p + prt 
A = p(1 + rt)  // factor out p 
A/p = 1 + rt    // divide both sides by p 
A/p - 1 = rt   // subtract 1 from both sides 
r = (A/p - 1)/t

Therefore, the correct answer is D.

If a = P + Prt,then R =