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The formula l=prt can be used to find the simple interest earned I, on a principle amount, P, with an interest rate of r, over a time of t. rewrite the formula to find the interest rate if the interest earned,time,and the principle are known

A. r= p/lt
B. r= Pt/l
C. r=l/pt
D. r= lt/p

1 Answer

4 votes

Answer:

C

Explanation:

given I = prt or

prt = I

isolate r by dividing both sides by pt

r =
(I)/(pt) → C


User Robinjohnobrien
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