College

The sum of the page numbers of two facing pages in a book is 145. What are the page numbers?

[tex]2x = 145[/tex]

Answer :

Let's go through the problem together. We are trying to find two consecutive page numbers in a book that add up to 145.

1. Let's suppose the first page number is [tex]\( x \)[/tex].
2. The page on the right would be the next consecutive number, so it would be [tex]\( x + 1 \)[/tex].
3. According to the problem, the sum of these two page numbers is 145. So, we write the equation:

[tex]\[
x + (x + 1) = 145
\][/tex]

4. Simplify the equation:

[tex]\[
2x + 1 = 145
\][/tex]

5. Subtract 1 from both sides to get:

[tex]\[
2x = 144
\][/tex]

6. Now, divide both sides by 2 to solve for [tex]\( x \)[/tex]:

[tex]\[
x = 72
\][/tex]

7. Therefore, the first page number is 72.

8. The next consecutive page number is:

[tex]\[
x + 1 = 72 + 1 = 73
\][/tex]

So, the two facing pages with consecutive numbers are 72 and 73.