Respuesta :
Answer:
He will save $283.8284
Step-by-step explanation:
We have given that Richard has a balance of $2200 on a credit card with an APR of 31.3 %
So principle amount P = $2200
And he transfers his balance to credit car with an APR of 19.1 %
So net rate of interest = 31.3 - 19.1 = 12.2 %
It is compounded monthly so time period n = 12
And rate of interest [tex]=\frac{12.2}{12}=1.0167%[/tex]
We know that total amount is given by
[tex]A=P(1+\frac{r}{100})^n=2200(1+\frac{1.067}{100})^{12}=$2283.8284[/tex]
So interest will be $2283.8284 - $2200 = $283.8284