1. Fill in the missing numbers in each a) $$ 845 ; 865 ; 885 ; $$

Question

UpStudy AI · Accepted Answer

To find the missing number in the sequence $$ 845 ; 865 ; 885 ; $$, we first observe the pattern in the numbers provided.

1. The first number is $$ 845 $$.
2. The second number is $$ 865 $$.
3. The third number is $$ 885 $$.

Next, we calculate the difference between consecutive numbers:

- The difference between $$ 865 $$ and $$ 845 $$ is:
  $$
  865 - 845 = 20
  $$

- The difference between $$ 885 $$ and $$ 865 $$ is:
  $$
  885 - 865 = 20
  $$

Since the difference is consistent at $$ 20 $$, we can conclude that this is an arithmetic sequence where each term increases by $$ 20 $$.

To find the next number after $$ 885 $$, we add $$ 20 $$ to $$ 885 $$:
$$
885 + 20 = 905
$$

Thus, the complete sequence is:
$$
845 ; 865 ; 885 ; 905
$$

The missing number is $$ 905 $$.
The missing number is 905.

Fill in the missing numbers in each
a)