Richard has a balance of $2200 on a credit card with an apr of 31.3% compounded monthly about how much will he save in interest over the course of a year if he transfers his balance to a credit card with an apr 19.1% compounded monthly

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

We know that total amount is given by

So interest will be $2283.8284 - $2200 = $283.8284

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: