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kolezko [41]
3 years ago
6

Please solve this math question

Mathematics
2 answers:
Neko [114]3 years ago
6 0
Hello there! The formula for finding simple interest is prt. That means multiply the principal (initial amount) by the rate (simple interest percentage) by the amount of time (could be in months or years). In this case, $9800 is the initial amount in the bank and the interest rate is 2% for 15 years. Let’s multiply the numbers. 9800 * 2% (0.02) is 196. That’s $196 a year in simple interest. But it asks for the amount in 15 years, so we multiply those two numbers. 196 * 15 is 2,940. There. $2,940 is earned in interest over 15 years. The answer is A: $2,940.
Yakvenalex [24]3 years ago
6 0

Answer:

the answer for apex is A: 2940

Step-by-step explanation:

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In how many ways could 12 people be
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Step-by-step explanation:

There are total 12 People

Person 1, Person 2,3,4,5,6,7, 9, 10, 11 and 12 at a round table

12 Chairs: 1,2,3,4,5,6,7,8,9,10,11 and 12                                                                                

Let chairs 1 and 2 be next to each other

Person 1 is at chair 1 and Person 2 is at chair 2

The rest of the people on 3,4,5,6,7,8,9,10,11 and 12 - can sit in 10! ways

Next, Person 1 and Person 2 change their positions;

Person 1 is sitting at 2 and Person 2 is sitting at 1

The rest of the people on 3,4,5,6,7,8,9,10,11 and 12 - can be rearranged in 10! ways

Therefore, total number of ways in which Person 1 and Person 2 are next to each other is: 2*10! = 7257600

As we then have to find in how many ways they are not sitting next to each other; subtract 7257600 from the total number of possible arrangements.

In circular permutation,

Total number of arrangements of n people = (n-1)!

Here the number of people is 12

Arrangement = (12-1)! = 11!= 39916800

Therefore, the number of ways Person 1 and Person 2 are not next to each other = 39916800 - 7257600 = 2659200

<em>Keywords: </em><em>permutation, combination</em>

<em> Learn more about permutation and combination from brainly.com/question/12953847</em>

<em> #learnwithBrainly</em>

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