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
AlexFokin [52]
2 years ago
9

What is the common difference in the arithmic sequence 30,27,24,21,18

Mathematics
1 answer:
vichka [17]2 years ago
6 0
If you have two terms in a sequence, then a term decreased by the previous term=common difference

so
30 and 27

27 decreased by 30 is -3

the common differce is -3
You might be interested in
Calls from a call box are charged per minute at one rate for the five minutes, then a different rate for each additional minute.
nirvana33 [79]

Answer:

  c.  $0.75 per minute at one rate for the first 5 minutes and $0.25 per minute thereafter

Step-by-step explanation:

The last 5 minutes of the 12-minute call cost ...

  $5.50 -4.25 = $1.25

so the per-minute rate at that time is ...

  $1.25/(5 min) = $0.25/min . . . . . . . . matches choice C only

__

You know the answer at this point, but if you want to check the rate for the first 5 minutes, you can subtract 2 minutes from the 7-minute call to find that ...

  The first 5 minutes cost $4.25 - 2·0.25 = $3.75, so are charged at ...

     $3.75/(5 min) = $0.75/min . . . . . . . matches choice C

5 0
2 years ago
maria saves $25.00 a month and her sister Luisa saves $37.50 a month. How many months will it take for Luisa to save exactly $10
NeTakaya
It will take Luisa 8 months to save $100 more
7 0
2 years ago
Read 2 more answers
15+(12+8a) simplify and justify each step
ki77a [65]
1. distribute a 1 to the 12 and 8a
2. you'll get 15+ 12 +8a
3. add the like terms(15 and 12)
4. your final answer will be 27+8a
5 0
3 years ago
Read 2 more answers
(3,7) Quadrant where the point is located
AleksandrR [38]
Since both values are positive, it is in quadrant 1
6 0
2 years ago
Solve the equation 4sqrt(3m ^ 2 - 15) = 4
Deffense [45]

Answer:

See the image below:)

Step-by-step explanation:

I can only show half of the steps, but these are some of the steps. You can use the app photo math, just take a picture and it will show you the steps and answer.

5 0
2 years ago
Other questions:
  • NEED HELP PLEASE IM BEGGING YOU !!!!
    10·1 answer
  • Please help the answer i put idk if its correct (brianlest if correct)
    14·1 answer
  • How can you decompose the composite??​
    7·1 answer
  • What is the answer to F(10)= 5(x-1)(2x+3)
    12·1 answer
  • What is an equation of the line that passes through the points (3,−4) and (3,8)
    7·1 answer
  • Only answer if you know the correct answer! Thanks! :)
    8·2 answers
  • Cuánto es mínimo común múltiplo de 87 y 69​
    12·1 answer
  • Rita goes for a bike ride on a trail by her house. After 15 minutes of riding she sees a mile marker. When she sees the third mi
    6·1 answer
  • The expression 6+16k factored using the GCF is what???????
    5·1 answer
  • You earn $35 for washing 7 cars. How much do you earn for washing 4 cars?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!