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
Likurg_2 [28]
3 years ago
10

An arithmetic sequence has a first term of 10 and a sixth term of 40. What is the 20th term of this sequence?

Mathematics
2 answers:
Aleks04 [339]3 years ago
6 0
In An arithmetic sequence will add or subtract the same thing each time to find the next term. In this case we start with 10 and need to get to 40 on the 6th term. This is a difference of 30 that needs to be divided by 5 open spaces. You are adding 6 each time.

10, 16, 22, 28, 34, 40, _,_,_,_, 70, _,_,_,_,100,_,_,_, 124.

Another way to do this would be to look at the 5th term and multiply it by 4 to get to the 20th term. 34 x 4 = 124.
goldfiish [28.3K]3 years ago
3 0

Answer:124

Step-by-step explanation:

This is an arithmetic sequence

The nth term of an arithmetic sequence is Tn = a + (n-1)d

a is the first term.

n is the number of terms

d is the common difference

a is 10

The sixth term T6 = 10 + (6-1)d = 40

T6 = 10 - 5d = 40

5d = 40 - 10

5d = 30

d = 6

To get the 20th term T20

T20 = 10 + (20-1)6

T20 = 10 + 19(6)

T20 = 10 + 114

T20 = 124

You might be interested in
The graph below represents which system of inequalities?<br>​
Sav [38]

Answer:

the second one pretty sure

8 0
3 years ago
Read 2 more answers
A rectangular hat box has a value of 5,184 cubic inches. The box is 2feet Long by 18in wide. What is the hat box’s height?
Hatshy [7]
D would be the correct answer. Post brainliest if this helped plz :)
6 0
3 years ago
a football team gains 8 yards in one play, loses 5 yards in the next. What is the teams total yardage for the two plays
Ann [662]
The team gained a total of 3 yards.  That is because they first gained 8 (0 + 8), then lost 3 (8 - 3).
6 0
3 years ago
One leg of a right triangle is 10 units, and its hypotenuse is 12 units. What is the length of the other leg?
denis-greek [22]

Answer:

about 7 units

Step-by-step explanation:

1010^{2} + b^{2} = 12^{2} \\100+b^{2} = 144 \\144- 100= 44\\=\sqrt{44} \\= 6.6\\round \\=7

3 0
3 years ago
The first five terms of an arithmetic sequence are 8, 13/2, 5, 7/2, and 2. Which function, f(x), could be used to describe the x
juin [17]

Answer:

f(x) = 8 - 1.5x

Step-by-step explanation:

Here, we want to write a function that can be used to describe the x th term of the sequence

Mathematically, this can be calculated by looking at the numbers in the sequence

The difference between each successive term

is -1.5 ( 6.5-8, 3.5 -5)

So the formula for then x th term will be;

f(x) = 8 - 1.5x

where x refers to the number of the term , for example the 4th term

5 0
3 years ago
Read 2 more answers
Other questions:
  • B(t)=50(1.4)^t
    8·1 answer
  • PLZ ANSWER I WILL GIVE BRAINLIEST AND 100 POINTS!!!!!!!!!!!1
    9·2 answers
  • Plz help!! Will give 30 points!!
    7·2 answers
  • Aiden borrows a book from a public library. He read a few pages on day one. On day two, he reads twice the number of pages than
    11·1 answer
  • Joe is playing a game with a regular die. if the number that turns up is even,he will gain 5 times the number that comes up. if
    5·1 answer
  • Question if u ask a question will it take your points away
    7·2 answers
  • I need help : (((((((
    7·1 answer
  • If 10 miles=16km, about how many miles would be equal to 76 km?​
    7·2 answers
  • 3,047.092 in expanded form.
    13·2 answers
  • Find the average rate of change of k(x) = x' over the interval [3, 9].
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!