Question 828124


Simple interest (I)  formula:



where P is the principal,
 r is the annual interest rate,
and t is the number of years .

P=6500

r=3 3/4%=3.75% =0.0375

I=975

Substituting into the formula, 

975 = 6500*3.75%t

Solving the equation for t, we obtain:

975 = 6500*0.0375*t



t = 4