Over the last three evenings, Linda received a total of 83 phone calls at the call center. The second evening, she received four
times as many calls as the third evening. The first evening she received seven fewer calls then the third evening. How many phone calls did she receive each evening?
The final value (FV) that is paid in a loan (which is the sum of the capital and the interests) equals the present value (PV) of the loan multiplied by , in a simple interest context, where "n" equals the periods of time and "i" equals the interest rate valid for that periodicity.
Then . In this case, PV=$15,000; final value equals FV=$15,000+1,687.5= $16,687.5.
We should clear "n" from our equation, which means: . Dividing both sides by 15,000, then subtracting 1 both sides, and finally dividing by 0.075 both sides, results in n=1.5.
Then, Malorie had the loan for one an a half periods.