Use the formula for the present value of an ordinary annuity or the amortization formula to solve the following problem. pv $8,000; i 0.01; pmt $400; n = ? (round up to the nearest integer.) n=

n = 22

Step-by-step explanation:

We will use the formula for the present value of an ordinary annuity :

where P = periodic payment

          r = rate per period

          n = number of periods

Given P = PMT = $400, P.V. = $8,000, i = 0.01, and we have to find n.

Now we put the values in the formula

After rearranging we have

= 1 - 0.2

= 0.8

Taking log on both sides

-n log 1.01 = log 0.8

= 22.4257

Therefore, n = 22

So there are total 22 payments

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest