The left and right page numbers of an open book are two consecutive integers whose sum is 345.345. find these page numbers.

x is the first number so x+1 is the number just after it.

Adding them up gets to x+(x+1) = 2x+1. Set this equal to 345 and solve for x. See the attached image for the steps. The solution to the equation 2x+1 = 345 is x = 172 which means x+1 = 172+1 = 173.

The two page numbers are 172 and 173. Note how 172+173 = 345

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.