The time required from simple interest on a principal of $4,500.00 at an interest rate of 22% per year is 4.55 years (about 4 years 7 months).
Simple Interest
Given Data
- Final Amount = $4,500*2 = $9,000
Equation:
t = (1/r)(A/P - 1)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 22%/100 = 0.22 per year,
then, solving our equation
t = (1/0.22)((9000/4500) - 1) = 4.55
t = 4.55 years
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