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
saul85 [17]
3 years ago
14

Please help!! this is due TODAY!

Mathematics
1 answer:
Rzqust [24]3 years ago
7 0
C I’m pretty sure that’s what is it
You might be interested in
WILL GIVE 100 POINTS
padilas [110]

(a) The explicit rule to model the sequence formed by the number of seats in each row is a_{n}=15+3n

(b) The 35th row has 120 seats

Step-by-step explanation:

The rule of the nth term of an arithmetic sequence is

a_{n}=a+(n-1)d , where

  • a is the the first term
  • d is the common difference between each two consecutive terms

∵ There are 18 seats in the 1st row

∵ There are 21 seats in the 2nd row

∵ 21 - 18 = 3

∵ The number of seats is increased by 3 with each additional row

- The number of seats in each row represents an arithmetic

   sequence because there is a common difference between

   each two consecutive rows

∴ The number of seats in each row formed an arithmetic sequence

∵ The number of seats in the first row = 18 seats

∴ a = 18

∵ The number of seats in a row continues to increase by 3 with each

   additional row

∴ d = 3

- Substitute the values of a and d in the rule of nth term

∴ a_{n}=18+(n-1)3

- Simplify the right hand side

∴ a_{n}=18+3n-3

- Add like terms

∴ a_{n}=15+3n

(a) The explicit rule to model the sequence formed by the number of seats in each row is a_{n}=15+3n

∵ There are 120 seat in a row

- Substitute a_{n} by 120 in the rule above

∴ 120 = 15 + 3n

- Subtract 15 from both sides

∴ 105 = 3n

- Divide both sides by 3

∴ n = 35

∴ The number of the row is 35

(b) The 35th row has 120 seats

Learn more:

You can learn more about the sequences in brainly.com/question/7221312

#LearnwithBrainly

6 0
3 years ago
What units would you use for each scenario that follows?
oksano4ka [1.4K]
A. miles
b. inches
c. pounds
5 0
3 years ago
Whoever answers correctly gets brainliest
ruslelena [56]
Here the answer in the image below as a table

C
D
E

6 0
2 years ago
Bruce’s hourly wage increased from $15.50 to $18.60. What rate of increase does this represent?
AURORKA [14]

Answer:

0.2% increase

Step-by-step explanation:

First, you find the change between $15.50 and $18.60, which is 3.10. Then you do 3.10 divided by the original, which is 15.50. You should get 0.2.

7 0
3 years ago
Which is greater, 2 or -13?
sineoko [7]
Positive numbers are always greater than negative numbers.

Therefore 2 > -13. In words, 2 is greater than -13.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Write three different improper fractions that equal 4 1/2
    9·2 answers
  • When looking at a rational function f of x equals the quantity x plus three times the quantity x minus two times the quantity x
    12·1 answer
  • If its £18.75 per square metre of clear plastic how much will it cost to cover 2x notice boards 1 metre high and 1 metre wide ?
    10·1 answer
  • Please answer and solve ?
    10·2 answers
  • Write a story problem that can be represented with the following equation:<br> 8x + 3 = 27
    12·2 answers
  • Please help with how I am supposed to do this. D:
    6·1 answer
  • This table shows how the cost of Dana’s birthday party depends on the number of guests. What is the price per guest?
    13·1 answer
  • How many inches are there in a mile? ASAP
    5·2 answers
  • A = 8, b = 4, and c = 16
    15·2 answers
  • QS∥PT. Complete the proof that m∠P+m∠T=m∠RQT without using the Triangle Angle Sum Theorem.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!