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
Marrrta [24]
3 years ago
12

The seventh term of an arithmetic sequence is 10.2 and the twelfth term is 17.7. What is the common difference of the arithmetic

sequence? The common difference is
Mathematics
2 answers:
Anna [14]3 years ago
8 0

Answer:

the common difference = 1.5

Step-by-step explanation:

The seventh term of an arithmetic sequence is 10.2 and the twelfth term is 17.7

a7 = 10.2

a12= 17.7

Use the formula for nth term

a_n= a_1+(n-1)d

where 'd' is the common difference

n is the number of terms

a1 is the first term

a_7= a_1+(7-1)d

10.2= a_1+6d  ---> equation 1

a_12= a_1+(12-1)d

17.7= a_1+11d  -------------> equation 2

Subtract equation 2 - equation 1

17.7= a_1+11d

10.2= a_1+6d

---------------------------------------

  7.5 = 5d

divide by 5 on both sides

d= 1.5

So the common difference = 1.5

marshall27 [118]3 years ago
3 0
7 = 10.2
12 = 17.7
Let's take 
d = 17.7 - 10.2/ 12 - 7
d =  7.5/ 5
d = 1.5
The common difference is 1.5

 <span />
You might be interested in
I Summary
Delicious77 [7]
Jdidisivodofiflslvkciuscidofildigldv
3 0
3 years ago
The area A of a sector of a circle is given by A=πr²s/360, where r is the radius of the circle and s is the angle measure(in deg
Leokris [45]
A= \frac{ \pi r^2s}{360} \\  \\   \pi r^2s=360A \\  \\ s= \frac{360A}{ \pi r^2}
5 0
3 years ago
Read 2 more answers
Amy cut a piece of yarn 3.05 inches long for a bracelet she was making. Which length is equivalent to 3.05 inches?
Lesechka [4]
Answer:

C. 3 1/20

Step-by-step explanation:

3.05 as a fraction = 3 1/20

Therefore the answer is C.
7 0
2 years ago
Read 2 more answers
2x - 8 algebraic expression
Angelina_Jolie [31]

Answer:

Because. I need to keep this balanced. I just bring down 2x I didn't do anything with him 8 minus 8 is 0 bring down my equal sign and 20 minus 8 is 12.

Step-by-step explanation:

can you me as brainliest if its right? i need 10000 points and 35 brainliest's to rank up to genius

4 0
2 years ago
How do you write 3.50 x 102 in standard form?
vekshin1
357 is your answer because all you do is solve the problem =
6 0
3 years ago
Other questions:
  • Which of the following are even numbers ?
    9·1 answer
  • What's the simplest form 1.4/7
    13·2 answers
  • Because of staffing decisions, managers of the Gibson-Marimont Hotel are interested in the variability in the number of rooms oc
    14·1 answer
  • Kevin recorded the ages of the next 12 people who entered his grocery store. He asked his brother John to find the mean, median,
    10·1 answer
  • 46 divided by 4 <br> Please help
    9·1 answer
  • Which number can be inserted in the box to make the equation below true?<br> 102 + 40y= (2x + 8y)
    12·1 answer
  • A bakery has 18 large trays of bagels and 20 small trays of bagels. Each large tray holds 30 bagels and each small tray holds 15
    15·1 answer
  • A rectangle has a length that is 2 inches less than its with. What is the area of the rectangle? Use w as your variable for widt
    8·1 answer
  • 77
    9·1 answer
  • This data set represents the lengths in inches of pieces of ribbon used in a project. What is the mean of this data set? {14, 11
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!