The first row of a section in a concert hall has 20 seats. The second row has 21 seats. The third row has 22 seats. This pattern
continues and this section has 12 rows. How many seats are in this section?
2 answers:
Answer:
The correct answer is 306. I took the test.
To solve this problem you must apply the proccedure shown below:
1. The arithmetic sequence is:

Where
is the nth termn,
is the first term,
is the common difference between the terms and
is the number of the term.
2. Based on the information given in the problem, you have:

3. When you substitute these values into the formula, you obtain:

The answer is:
seats
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Step-by-step explanation:
Enter the following numbers in the boxes provided sequentially.
First box : 7
Second box: 2
Third box: 3
Fourth box : 4
Fifth box: 8
Sixth box: 3
Yes, your current answer is correct. Divide each term by the divisor.
Answer:
1/4 i think
Step-by-step explanation:
hope this helps
if i was right pls mark brainliest
Answer:
A.
B.
C.
<u>Mean:</u>
- Homework = (4 + 6*2+10*3+12*2+14*4+16*2+18)/15 = 11.73
- Television = (0 + 10*3+12*1+16*3+18*4+20*3)/15 = 14.8
<u>The difference:</u>
- 14.8 - 11.73 > 1, NOT true
D.