1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Yuki888 [10]
3 years ago
12

Determine the seating capacity of an auditorium with 35 rows of seats if there are 20 seats in the first row, 23 seats in the se

cond row, 26 seats in the third row, 29 seats in the forth row, and so on.
Mathematics
1 answer:
777dan777 [17]3 years ago
8 0

Answer:

  2485

Step-by-step explanation:

The number of seats in row n is given by the explicit formula for an arithmetic sequence:

  an = a1 +d(n -1)

  an = 20 +3(n -1)

The middle row is row 18, so has ...

  a18 = 20 + 3(18 -1) = 71 . . . . seats

The total number of seats is the product of the number of rows and the number of seats in the middle row:

  capacity = (71)(35) = 2485

The seating capacity is 2485.

You might be interested in
At one time the price of gasoline was $1.279 a gallon. Then the price
ELEN [110]

Answer:

1.6627 (money wise, $1.66)

Step-by-step explanation:

Since its 130%, you know there was already a whole increase. So first you would do 1.279 + 1.279, which would give you 2.558. Then you need to calculate 30% of 1.279 for the rest of the increase. That gives you 0.3837 Add 2.558 and 0.3837 together, which would give you 2.9417. To get the INCREASE, you would have to subtract the new total from the original price, so 2.9417 - 1.279. This would give you 1.6627.

5 0
2 years ago
According to research, how does the public view children and teens with mental health disorders? Group of answer choices A stati
Liono4ka [1.6K]

According to research, the public views children and teens with mental health disorders as over 1,300 U.S. adults believe children with depression are prone to violence

Answer: Option B

<u>Explanation:</u>

Most Americans trust that the people count has increased with mental health disorders in the last 20 years (69 %) and that is a major health issue in the US (89 %) according to the results of survey. They believe that mental health disorders are caused by physical disorders (like brain’s chemical imbalance or due to environmental criteria (daily stress or alcoholism / abuse of drugs).

Over nine out of ten respondents cited those factors as typical causes for mental health disorders. When asked about the most common causes of this, nearly 27 % reported chemical brain imbalances and stress in their daily lives, and 20 % reported alcohol or drug abuse.

7 0
3 years ago
Helppppp !!!!!! <br><br>8^6 ÷ 8^7<br><br>A. 8^0<br>B. 8^1 <br>C. 8^5<br>D. 8^-1<br>E. 8^10​
MArishka [77]

8^6 ÷ 8^7 = 8^{6-7} = 8^{-1}

<h3>CMIIW</h3>
3 0
2 years ago
Read 2 more answers
What is the solution to 8/x+2=2/x-4
romanna [79]

Answer:

x=-1

Step-by-step explanation:

8/x+2=2/x-4

8/x=2/x-6

8=2-6x

6=-6x

-1=x

5 0
3 years ago
Read 2 more answers
A cooking pot used in the cafeteria weighs 64 pounds when it is filled with soup. How much would a similar pot with a
alexandr402 [8]

Answer:

If you are talking about 1/2 scale factor, it is D. 32.

Step-by-step explanation:

What you are saying does not make sense for a scale factor of 1. If it were a scale factor of one, it would still be 64 lbs. which is not a option.

Can I get brainliest please?

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is x equal to? explain
    13·1 answer
  • What is the value of 8x + 2x when x = 6?
    9·2 answers
  • A wire is first bent into the shape of a triangle. Each side of the triangle is 24 inches long. Then the wire is unbent and resh
    10·2 answers
  • I have 2 questions:
    5·1 answer
  • What is the result when the number 12 is increased by 25%?
    13·2 answers
  • What is the area of the circle of the diameter is 12
    14·2 answers
  • Please help!!! I need this done today!!
    13·1 answer
  • WHOEVER EXPLAINS ALL THEIR WORK AND GOES THROW EAXH STEP WILL GET BRAINLEST THAT IS COMPLETELY FINISEHD. write the equation of t
    10·1 answer
  • Given that x = 7, what is the value of -2x^0
    7·1 answer
  • If B is between A and C, AB= x+6, BC= 5x -4, and AC= 12x - 20, then x=?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!