Type the missing number in this sequence: _____, 31, 21, 11, 1

Identify Pattern: We need to identify the pattern in the sequence. Let's look at the differences between the numbers provided. 31 - 21 = 10 21 - 11 = 10 11 - 1 = 10 The pattern is that each number is 10 less than the previous number.Add 10: To find the missing number, we add 10 to the first known number in the sequence, which is 31. Missing number + 10 = 31Solve for Missing Number: Now we solve for the missing number. Missing number = 31 - 10 Missing number = 21

Resources

Testimonials

Plans

Resources

Testimonials

Plans

AI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Type the missing number in this sequence: $\newline$ $\_\_\_\_$ , $31$ , $21$ , $11$ , $1$

View step-by-step help

Home

Math Problems

Precalculus

Find terms of a sequence

Full solution

Q. Type the missing number in this sequence:

\newline

\_\_\_\_

31

21

11

1

Identify Pattern: We need to identify the pattern in the sequence. Let's look at the differences between the numbers provided. $\newline$ $31 - 21 = 10$ $\newline$ $21 - 11 = 10$ $\newline$ $11 - 1 = 10$ $\newline$ The pattern is that each number is $10$ less than the previous number.
Add $10$ : To find the missing number, we add $10$ to the first known number in the sequence, which is $31$ . $\newline$ Missing number $+$ $10$ = $31$
Solve for Missing Number: Now we solve for the missing number. $\newline$ Missing number = $31 - 10$ $\newline$ Missing number = $21$