What is a rational number that is located between 31.5 and 31.6

the rational number between 31.5 and 31.6 is 31.55

Step-by-step explanation:

Now, we know that, average of the given numbers will lie in between the given numbers.

And, as we are finding average, which means sum divided by 2, it can be written in form.

So, it will be an rational number between given numbers.

Then, average of 31.5 and 31.6 =

Average =

Average = 31.55  

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.