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
evablogger [386]
3 years ago
9

If the common difference in an arithmetic sequence is 4, and the 20th term is 36, what is the first term

Mathematics
1 answer:
zhuklara [117]3 years ago
3 0
D=2

a+29d=36

then a=-22
You might be interested in
Two airlines offer special group rates to your school’s Spanish Club for a trip to Mexico City. Mexican Air airline offers a rou
Finger [1]

Answer:

a. The Mexican Airline offers a better deal for 9 students to travel.  

b. 10 students

Step-by-step explanation:

a. The Mexican Air airline offers a round trip airfare of $250 per person.

So, for 9 students the fare will be total $(250 × 9) = $2250

Now, the Fiesta airline offers a round trip airfare of $150 per person if the club agrees to pay a one-time group rate processing fee of $1000.

So, for 9 students the total fare will be = $[1000 + (150 × 9)] =$2350.

Therefore, the Mexican Airline offers a better deal for 9 students to travel.  (Answer)

b. Let for x students both the airline offers the same total costs.

Then we can write  

250x = 1000 + 150x {From the conditions given}

⇒ 100x = 1000

⇒ x = 10

So, if the number of students is 10, then only both the airlines will take same fare. (Answer)

8 0
3 years ago
Can u solve this for me??
dangina [55]

Answer:

19 lawns

Step-by-step explanation:

well 64.99 is about $65

so you would need to mow atleast 19 lawns (this does not included tax XD)

3 0
3 years ago
How do you put 8/100 ,3/5 ,7/10 from least to greatest
emmainna [20.7K]
From least to Greatest: 8/100, 7/10, 3/5
3 0
3 years ago
Read 2 more answers
You deposit $3000 in an account earning 4% interest compounded continuously. How much will you have in
V125BC [204]

Answer: $3,664.21

Formula: A=Pe^{rt}

  • P = principle/original amount = $3000
  • r = rate of interest = 4% = 0.04
  • t = time period (in years) = 5
  • A = the new amount
  • e = Euler's number ≈ 2.718...

Substitute in the values:

A=(3000)e^{(0.04)(5)} =(3000)e^{0.2} =(3000)(1.2214)=3664.208

<u>Approximately $3,664.21</u>

<em>I think this is how you solve it o_O</em>

7 0
3 years ago
Explain the closure property as it relates to addition of polynomials. Give an example.
valentinak56 [21]

Answer:

it relates to it for a shape

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Mandy's new baby sister weighs 8 1/2 lb. when mandy was born, she weighed 116 oz. what is the difference in their two birth weig
    6·1 answer
  • the lengths of three pieces of wire are in the ratio 10:15:8. if the length of the shortest piece of wire is 2.4 m, find the dif
    6·1 answer
  • Can someone help me with number 4,5 and 6?
    9·1 answer
  • Can somebody help me with these please
    12·1 answer
  • Multiply the following polynomial and write the resulting polynomial in descending order. (3x-8)(2x^2+4x-9)
    8·1 answer
  • Mary made a withdrawal of d dollars from her savings account. Her previous balance was $350, and her current balance is $280. Re
    9·1 answer
  • What is b?<br> -17+b/8:13
    14·1 answer
  • (1/2+2/3)÷2 5/6×15-3 1/7​
    7·1 answer
  • Sam bought 9 ounces of cheese for $3.24. Joe bought 7 ounces of cheese for $3.22. Who got the best deal?
    8·1 answer
  • PLEASE HELP!!! I need the answer now
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!