$~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$500\\ r=rate\to 4.25\%\to \frac{4.25}{100}\dotfill &0.0425\\ t=years\dotfill &10 \end{cases} \\\\\\ A=500e^{0.0425\cdot 10}\implies A=500e^{0.425}\implies A\approx 764.80$

6 0

2 years ago

Atthebeginningofa31-daybillingperiod,Sandrahasanunpaidbalanceof$720onhercreditcard.Threedaysbeforetheendofthebillingperiod,shepa

Pavlova-9 [17]

We need to calculate the average balance per day.

In this case, the billing period has 31 days and Sandras has an unpaid balance of $720 during 28 days and unpaid balance of $720-$400=$320 during 3 days, so the average balance is:

$\text{average balance=}\frac{(720\cdot28+320\cdot3)}{31}=\frac{21120}{31}=681.29$

7 0

1 year ago

Read 2 more answers

If the probability that a student is on-time to class is 0.1 and the probability he is on-time or marked tardy on the attendance

kompoz [17]

T Tardy– Student tardy for less than 30 minute with no valid excuse. W See Unexcused Absences (above). Z Excused Tardy– Student tardy to class but with an acceptable explanation, i.e. doctor/dentist.

3 0

3 years ago