Which equation represents the total interest, T, earned when the principal amount is $100, the annual simple

interest rate is 1%, and the number of years is 10?

A. T = 100 • (10+0.1)

B. T = 100 • (10+0.01)

C. T = 100 • 0.1 • 10

D. T = 100 • 0.01 • 10

The answer is option (C), T = 100 • 0.1 • 10

Step-by-step explanation:

Total interest (T) earned after a 10 years can be expressed as;

Total interest (T) = Principal amount*interest rate*Number of years

where;

Total interest=T

Principal amount=$100

Interest rate=10%=10/100=0.1

Replacing;

T=100*0.1*10

The equation for calculating the total interest amount after 10 years can be written as;

T = 100 • 0.1 • 10